professor onais assignments

Hogwarts Legacy Professor Onai’s Assignment Walkthrough

February 7, 2023 by HardyBoy 1 Comment

Professor Onai’s Assignment is an Assignment in Hogwarts Legacy. This walkthrough will guide you through all objectives of the Professor Onai’s Assignment assignment quest.

Location :  The Library Annex -> Divination Classroom Quest Giver:  Professor Onai Quest Level:  Level 15 Requirement:  Having Finished Main Quest: Percival Rackham’s Trial Reward:  Descendo, 150XP Mission Info:  Professor Onai wants me to field test Depulso on a levitated enemy. She also wants me to collect Troll Bogeys, so I will need to find and defeat a troll to complete here assignment. My Field Guide will not guide me through this assignment, but my map could still prove useful.

Objectives:

Collect Troll Bogeys x1

Cast depulso on a levitated enemy, attend divination class during the day, return to professor onai, starting location: professor onai’s assignment.

You just have to defeat a troll, you can find one on the south side of the map, look at the picture below.

Defeat the troll and collect the Bogey from the ground.

For this cast Levioso on a small enemy so that it floats in the air, then cast Depulso on him. If you defeated the troll from above, just go to the nearby castle, there are some enemies where you can do this.

Go back to the castle The Library Annex -> Divination Classroom and attend the Class.

After the class talk to Professor Onai, she will teach you Descendo.

This finishes Professor Onai’s Assignment Assignment Quest in Hogwarts Legacy.

For all other Side Quests and Main Quests, check out the complete  Hogwarts Legacy Walkthrough .

February 13, 2023 at 2:23 pm

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Professor Onai's Assignment Quest Walkthrough

★ List of All Treasure Map Quests ★ Best Side Quests to Do First | Best Optional Quests ★ How to Complete Dueling Feats ★ Best Spell Combos ★ Farm Gold Fast ★ Post-Game Content Guide

Professor Onai's Assignment is one of the Assignments in Hogwarts Legacy. Read on for a detailed walkthrough, list of rewards, and tips on how to complete Professor Onai's Assignment!

List of Contents

• Related Guides

Professor Onai's Assignment Overview

How to unlock, quest information, unlock the descendo spell.

Descendo is a Force Spell that you will unlock after completing this Assignment and returning to Professor Onai. It's a great air juggle combo finisher as, although it can't deal damage on its own, it can deal heavy damage on airborne enemies as it slams them to the ground.

An example chain of Spells is Levioso , Accio , Flipendo , then Descendo—each with Basic Casts in between.

Descendo Effects and How to Get

Professor Onai's Assignment Walkthrough

Quest objectives, 1. how to find trolls.

Trolls are found in Troll Lairs , which are marked by an inverted triangle icon with a cave on the map. You can find one in the Feldcroft Region, located southwest of Hogwarts Castle.

List of Trolls and How to Beat Trolls

Hogwarts Legacy Related Guides

• Main Quest Walkthroughs

List of All Main Quests

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Professor Onai's Assignment

• 1 Objectives
• 2 Conclusion

Objectives [ ]

" Professor Onai wants me to field test Depulso on a levitated enemy. She also wants me to collect Troll Bogeys , so I will need to find and defeat a troll to complete her assignment. My Field Guide will not guide me through this assignment, but my map could still prove useful."

• Collect Troll Bogeys (1)
• Cast Depulso on a levitated enemy

"I've completed Professor Onai's assignment. I should return to her classroom so that I can learn Descendo ."

• Attend Divination Class during the day

"I've completed Professor Onai's extra assignments. I ought to report back to her."

• Return to Professor Onai

Conclusion [ ]

"I successfully field tested Depulso and managed to collect some Troll Bogeys for Professor Onai. As promised, she taught me how to cast the Descendo spell, which I can use to slam opponents to the ground."

Rewards [ ]

• Aion Classic
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• Cyberpunk 2077
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Professor Onai’s Assignment – Hogwarts Legacy Quest

• Published February 17, 2023
• Updated December 25, 2023

The Path to Hogwarts

Welcome to Hogwarts

Defence Against the Dark Arts Class

Charms Class

Weasley After Class

Welcome to Hogsmeade

The Locket’s Secret

Secrets of the Restricted Section

Tomes and Tribulations

Herbology Class

Potions Class

The Girl from Uagadou

Trials of Merlin

Scrope’s Last Hope

The Hunt for the Missing Pages

Prisoner of Love

Ollivander’s Heirloom

Jackdaw’s Rest

Flying Class

In the Shadow of the Undercroft

The Room of Requirement

The Map Chamber

Percival Rackham’s Trial

Beasts Class

The Caretaker’s Lunar Lament

The Helm of Urtkot

In the Shadow of the Estate

The Elf, the Nab-Sack, and the Loom

The High Keep

Astronomy Class

Back on the Path

Charles Rookwood’s Trial

Fire and Vice

It’s All Gobbledegook

In the Shadow of the Mine

The Headmistress Speaks

The Polyjuice Plot

Niamh Fitzgerald’s Trial

In the Shadow of the Mountain

Lodgok’s Loyalty

San Bakar’s Trial

Wand Mastery

The Final Repository

Weasley’s Watchful Eye

The House Cup

Professor Ronen’s Assignment

Professor Hecat’s Assignment 1

Professor Hecat’s Assignment 2

Professor Sharp’s Assignment 1

Professor Sharp’s Assignment 2

Professor Garlick’s Assignment 1

Madam Kogawa’s Assignment 1

Professor Garlick’s Assignment 2

Madam Kogawa’s Assignment 2

Professor Onai’s Assignment

Professor Howin’s Assignment

Professor Weasley’s Assignment

Like a Moth to a Frame

Crossed Wands: Round I

Crossed Wands: Round II

Flying Off the Shelves

Gobs of Gobstones

Cache in the Castle

Spell Combination Practice 1

Spell Combination Practice 2

Crossed Wands: Round III

Venomous Valour

‘Dissending’ for Sweets

Interior Decorating

The Daedalian Keys

Summoner’s Court: Match 1

‘Mer-ky’ Depths

Summoner’s Court: Match 2

The Hall of Herodiana

The Tale of Rowland Oakes

The Man Behind the Moons

The Plight of the House-Elf

Summoner’s Court: Match 3

‘Beeting’ a Curse

Foal of the Dead

All’s Well That Ends Bell

Summoner’s Court: Match 4

History of Magic Class

Phoenix Rising

Portrait in a Pickle

Summoner’s Court: Match 5

Follow the Butterflies

Flight Test

A Demanding Delivery

Sweeping the Competition

A Friend In Deed

Venomous Revenge

Take the Biscuit

The Unique Unicorn

Spot Removal

The Sky Is the Limit

Tangled Web

Minding Your Own Business

The Lost Astrolabe

Carted Away

Breaking Camp

Brother’s Keeper

Troll Control

Ghost of Our Love

E-vase-ive Manoeuvre

Kidnapped Cabbage

Absconder Encounter

A Thief in the Night

Solved by the Bell

Birds of a Feather

Sacking Selwyn

Rescuing Rococo

The Hippogriff Marks the Spot

Cursed Tomb Treasure

In the Shadow of the Bloodline

In the Shadow of the Study

In the Shadow of Discovery

In the Shadow of Time

In the Shadow of Distance

In the Shadow of Hope

In the Shadow of the Relic

In the Shadow of Fate

In the Shadow of Friendship

The Lost Child

Mum’s the Word

A Basis for Blackmail

Grief and Vengeance

Finding Focus

Harlow’s Last Stand

Acting on Instinct

A Dragon Debrief

Poached Egg

The Poachers’ House Call

Surprise Meeting

The Centaur and the Stone

It’s in the Stars

A Bird in the Hand

Poppy Blooms

How to Solve All Puzzle Doors

Arithmancy Classrooms’s Puzzle Doors

Charms Classroom’s Puzzle Door

Grand Staircase’s Puzzle Door

Grand Staircase Tower’s Puzzle Door

Ravenclaw Tower’s Puzzle Door

Great Hall’s Puzzle Door

Central Hall’s Puzzle Door

Faculty Tower’s Puzzle Door

Bell Tower’s Puzzle Door

Long Gallery’s Puzzle Door

• Quest Type: Mandatory Class Assignment
• Location: Anywhere
• Completed Percival Rackham’s Trial

Cast Depulso on a Levitated Enemy

Collect Troll Bogeys (1)

Again, a plain-dealing task, but only if you know where to find trolls . We were able to find some not far from the Floo Flame location, San Bakar’s Tower.

You should see a couple of river trolls; try to fight only one without getting the attention of the other, as they are tanky enemies. After defeating it, loot its corpse to collect the Troll Bogeys and finish the task.

Attend Divination Class During the Day

Return to Main Menu

Mer-ky’ Depths

Kelson is a spud head from out west. He is most happy when holding a milky tea with too much honey and playing a sprawling role playing game or reading a fantasy novel. His video game tastes vary but his main genres are looter shooters, RPGs, and real time strategy games.

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Hogwarts Legacy Professor Onai’s Assignment Troll Bogey Locations

Hello, dear wizard/witch, and welcome to our Hogwarts Legacy game hub, where you get to learn everything there is to know about the latest video game developed by Avalanche Software for PlayStation 5, Nintendo Switch, PlayStation 4, Xbox Series X & S, Xbox One, and PC.

Our Hogwarts Legacy strategy guide includes walkthroughs for all 42 Main Story Quests, 57 Side Quests, and 12 Assignments. Furthermore, you’ll find in-depth guides for all collectibles in the video game, and we’ll reveal the locations of all monsters. So, what are you waiting for? Pick one of the guides, and let us help you become the most powerful wizard/witch Hogwarts has ever seen!

Collection Chests:

• South Wing Collection Chests
• Great Hall Collection Chests
• Grand Staircase Collection Chests
• Astronomy Wing Collection Chests
• Library Annex Collection Chests
• Bell Tower Wing Collection Chests
• Hogsmeade Collection Chests
• Clagmar Coast Collection Chests
• Cragcroftshire Collection Chests
• Manor Cape Collection Chests
• Marunweem Lake Collection Chests
• Poidsear Coast Collection Chests
• Ashwinder Hideout Collection Chest 
• Tomb Of Treachery Collection Chest
• Feldcroft Region Collection Chests
• Moonstone Garden Collection Chests
• Feldcroft Catacomb Collection Chests
• South Sea Bog Collection Chest
• Hogwarts Valley Collection Chests
• Mine’s Eye Collection Chests
• Gilded Perch Collection Chest
• Dale Family Tomb Collection Chest
• South Hogwarts Region Collection Chests
• Mary Portman’s Cellar Collection Chest
• North Hogwarts Region Collection Chests
• Collector’s Cave Collection Chest
• Korrow Ruins Collection Chest
• Coastal Mine Collection Chests
• Tower Tunnel Collection Chests
• Forbidden Forest Collection Chests
• Horklump Hollow Collection Chest
• Phoenix Mountain Cave Collection Chests
• Hogsmeade Valley Collection Chests
• Overlook Mine Collection Chests
• North Ford Bog Collection Chests
• Henrietta’s Hideaway Collection Chest

Field Guide Pages:

• South Hogwarts Field Guide Pages
• South Wing Field Guide Pages
• Great Hall Field Guide Pages
• Grand Staircase Field Guide Pages
• Astronomy Wing Field Guide Pages
• Bell Tower Wing Field Guide Pages
• Library Annex Field Guide Pages
• Hogsmeade Field Guide Pages
• Clagmar Coast Field Guide Pages
• Cragcroftshire Field Guide Pages
• Coastal Cavern Field Guide Page
• South Sea Bog Field Guide Page
• Hogwarts Valley Field Guide Pages
• North Hogwarts Region Field Guide Page
• Hogsmeade Valley Field Guide Pages
• North Ford Bog Field Guide Pages 
• Feldcroft Region Field Guide Pages

Flying Balloons:

• Clagmar Coast Balloons
• Cragcroftshire Balloons
• Manor Cape Balloons
• Marunweem Lake Balloons
• Poidsear Coast Balloons
• Coastal Cavern Balloons
• South Hogwarts Region Balloons
• North Hogwarts Region Balloons
• Hogsmeade Valley Balloons
• Feldcroft Region Balloons
• North Ford Bog Balloons

Merlin Trials Solutions:

• Clagmar Coast Merlin Trials
• Cragcroftshire Merlin Trials
• Manor Cape Merlin Trials
• Marunweem Lake Merlin Trials
• Poidsear Coast Merlin Trials
• Feldcroft Region Merlin Trials
• Hogwarts Valley Merlin Trials
• South Sea Bog Merlin Trials
• South Hogwarts Region Merlin Trials
• North Hogwarts Region Merlin Trials
• Forbidden Forest Merlin Trials
• Hogsmeade Valley Merlin Trials
• North Ford Bog Merlin Trials

Astronomy Tables:

• Clagmar Coast Astronomy Table
• Cragcroftshire Astronomy Table
• Manor Cape Astronomy Table
• Marunweem Lake Astronomy Table
• Poidsear Coast Astronomy Table
• Bell Tower Wing Astronomy Table
• Hogwarts Valley Astronomy Tables
• South Hogwarts Region Astronomy Tables
• Forbidden Forest Astronomy Table
• Hogsmeade Valley Astronomy Table
• Feldcroft Region Astronomy Tables
• North Ford Bog Astronomy Table

Landing Platforms:

• Clagmar Coast Landing Platform
• Cragcroftshire Landing Platform
• Manor Cape Landing Platforms
• Marunweem Lake Landing Platforms
• Poidsear Coast Landing Platform
• Hogwarts Valley Landing Platforms
• South Hogwarts Region Landing Platform
• North Hogwarts Region Landing Platforms
• Hogsmeade Valley Landing Platforms
• Feldcroft Region Landing Platforms
• North Ford Bog Landing Platform

Infamous Foes:

• Clagmar Coast Infamous Foe
• Manor Cape Infamous Foes
• Poidsear Coast Infamous Foe
• Coastal Cavern Infamous Foe
• Hogwarts Valley Infamous Foes
• South Hogwarts Region Infamous Foe
• Marunweem Lake Infamous Foe
• North Hogwarts Region Infamous Foe
• Feldcroft Region Infamous Foes
• Hogsmeade Valley Infamous Foes

Ancient Magic Hotspots:

• Cragcroftshire Ancient Magic Hotspot 
• Manor Cape Magic Hotspot
• Marunweem Lake Ancient Magic Hotspots
• Poidsear Coast Ancient Magic Hotspots
• Hogwarts Valley Ancient Magic Hotspots
• North Hogwarts Region Ancient Magic Hotspot
• Forbidden Forest Ancient Magic Hotspots
• Feldcroft Region Ancient Magic Hotspots
• Hogsmeade Valley Ancient Magic Hotspot

Demiguise Statues:

• Hogsmeade Demiguise Statues
• Cragcroftshire Demiguise Statue
• Manor Cape Demiguise Statue
• Marunweem Lake Demiguise Statue
• Hogwarts Valley Demiguise Statues
• South Hogwarts Region Demiguise Statues
• Hogsmeade Valley Demiguise Statue
• Feldcroft Region Demiguise Statues
• North Ford Bog Demiguise Statue

Guides & How-To’s:

• All Hogwarts Secrets Solutions
• Where To Find the Key of Admittance
• How To Solve the Depulso Puzzle Room 1
• How To Solve the Depulso Puzzle Room 2
• The Path To Hogwarts
• Welcome To Hogwarts
• Crossed Wands Round 1
• Charms Class
• Cache In The Castle
• Gobs Of Gobstones
• Breaking Camp
• Defence Against The Dark Arts Class
• Weasley After Class
• Like A Moth To A Frame
• Professor Ronen’s Assignment
• Flying Off The Shelves
• Crossed Wands Round 2
• Carted Away
• Venomous Valour
• Brother’s Keeper
• Spell Combination Practice 1
• Spell Combination Practice 2
• The Lost Astrolabe
• Welcome To Hogsmeade
• The Locket’s Secret
• Crossed Wands Round 3
• Ghost Of Our Love
• A Demanding Delivery
• Follow The Butterflies
• Dissending For Sweets
• Flight Test
• Kidnapped Cabbage
• Mer-Ky Depths
• Secrets Of The Restricted Section
• Tomes And Tribulations
• Troll Control
• Interior Decorating
• Herbology Class
• A Thief In The Night
• The Room Of Requirement
• The Daedalian Keys
• The Caretaker’s Lunar Lament
• The Man Behind The Moons
• Fire And Vice
• The Unique Unicorn
• History Of Magic Class
• Cursed Tomb Treasure
• Well, Well, Well
• Birds Of A Feather
• Portrait In A Pickle
• Phoenix Rising
• The Helm Of Urtkot
• In The Shadow Of The Estate
• Astronomy Class
• The High Keep
• All’s Well That Ends Bell
• The Hunt For The Missing Pages
• The Hall Of Herodiana
• The Potions Class
• The Girl From Uagadou
• Trials Of Merlin
• Scrope’s Last Hope
• Sweeping The Competition
• Prisoner Of Love
• The Hippogriff Marks The Spot
• Venomous Revenge
• The Map Chamber
• Absconder Encounter
• E-Vase-Ive Manoeuvre
• A Friend In Deed
• Summoner’s Court Match 1
• Summoner’s Court Match 2
• Summoner’s Court Match 3
• Summoner’s Court Match 4
• Summoner’s Court Match 5
• In The Shadow Of The Bloodline
• In The Shadow Of Distance
• In The Shadow Of The Study
• In The Shadow Of Discovery
• In The Shadow Of Time
• In The Shadow Of Hope Quest
• In The Shadow Of The Relic
• In The Shadow Of Fate
• In The Shadow Of Friendship
• In The Shadow Of The Undercroft
• A Dragon Debrief
• Poached Egg
• The Poachers’ House Call
• Surprise Meeting
• The Centaur And The Stone
• It’s In The Stars
• A Bird in the Hand
• Poppy Blooms
• Mom’s The Word
• Beasts Class
• A Basis For Blackmail
• Grief And Vengeance
• Finding Focus
• Harlow’s Last Stand
• Acting On Instinct
• In The Shadow Of The Mountain
• Lodgok’s Loyalty
• Professor Hecat’s Assignment 1
• Professor Hecat’s Assignment 2
• Professor Sharp’s Assignment 1
• Professor Howin’s Assignment
• Professor Weasley’s Assignment
• Professor Onai’s Assignment
• Madam Kogawa’s Assignment 1
• Madam Kogawa’s Assignment 2
• Professor Garlick’s Assignment 1
• Professor Garlick’s Assignment 2
• Professor Sharp’s Assignment 2
• In The Shadow Of The Mine
• It’s All Gobbledegook
• The Headmistress Speaks
• Polyjuice Plot
• Back On the Path
• Jackdaw’s Rest
• Flying Class
• Percival Rackham’s Trial
• Charles Rookwood’s Trial
• Niamh Fitzgerald’s Trial 
• San Bakar’s Trial
• Wand Mastery
• The Final Repository
• Weasley’s Watchful Eye
• The House Cup
• The Sky Is The Limit
• The Elf, The Nab-Sack, And The Loom
• Foal Of The Dead
• Beeting A Curse
• Sacking Selwyn
• Rescuing Rococo
• Solved By The Bell
• Tangled Web
• The Lost Child
• Spot Removal
• Take The Biscuit
• The Tale Of Rowland Oakes

Tips & Tricks: 

• How To Change Gear Appearance
• How To Unlock All Spells
• How To Unlock The Flying Broom
• Feldcroft Region Arrow Cube Treasure Vault Puzzle
• Minding Your Own Business Exclusive Quest

Hogwarts Legacy Professor Onai’s Assignment allows you to unlock the Descendo Spell, provided you know where to find Troll Bogeys and how to cast Depulso on a levitated enemy. Unlike Madam Kogawa’s Assignments , Professor Onai’s tasks are a bit more difficult but nevertheless mandatory if you wish to unlock all Spells in Hogwarts Legacy .

Professor Onai’s Assignment in the latest video game published by  Warner Bros. Games also rewards you 150 XP, and it counts as one of the 12 Assignments you can access. Onai’s Assignment becomes available after you finish Percival Rackham’s Trial story quest and successfully complete the first Trial in the game.

Shortly after completing the main quest, you’ll receive a new letter from your Divination Class Professor via the Owl Post.

Make sure you check it out by accessing your Field Guide:

“Please see me after class once you have completed the tasks I have set for you. I would like to teach you Descendo – useful for pulling objects to the ground.”

Great, now let’s check the tasks Onai discusses in her letter. Navigate to the Quests Tab next, and you’ll learn that to unlock Descendo, you’ll have to:

• Collect one Troll Bogey
• Cast Depulso on a levitated enemy

Before moving forward, it’s worth mentioning that there are multiple locations where you can complete these two tasks, but for the sake of our guide, we’ll reveal the one we have used. Alternatively, you can complete them while playing through the story or working on side-quests. If you want to focus on this quest alone, here is what you must do next.

How To Cast Depulso on a Levitated Enemy

To complete both objectives, we picked a location on the map’s southern side—specifically, the Troll Lair west of Henrietta’s Hideaway in the Manor Cape Region. You can see the exact location on the map below, and to get here, you’ll need to reach the Poidsear Coast first.

While flying towards the Troll Lair marked on our map, you’ll find a small Poachers’ Camp on the road northwest of it. Before engaging them, you’ll want to equip the Levioso and Depulso Spells by pressing Right on your DPad .

Now, get close to the camp, mark a target by pressing the Right Thumbstick , and cast Levioso. Without changing the target that levitates, cast Depulso, and the first task is complete. Again, you can do this on any enemy except trolls or other giant creatures.

Hogwarts Legacy Troll Bogey Locations

The Troll Bogeys in Hogwarts Legacy are resources gathered after defeating Trolls. A Troll Bogey is a thick mucus used to craft the Invisibility Potion. Since a Troll Bogey is a guaranteed drop, all you need to do for the second task in Professor Onai’s Assignment is to defeat a Troll.

So, resume your travel to the Troll Lair marked on our map above, and deal with the River Troll roaming on the beach. Make sure that once you defeat the Troll, you get the Troll Bogey dropped by the giant creature.

As said, you can get Troll Bogeys from all Trolls, including the one you’ll encounter while playing the Troll Control side quest or any other Troll you deal with. Great! Now that you have completed the second task, it’s time to return to Professor Onai.

You’ll find her in the Divination Classroom in The Library Annex Area. Simply fast-travel to the Divination Classroom Floo Flame or the closest Floo Flame you have unlocked, then climb the metal ladder to reach Onai’s small classroom. Be advised that you must attend the class during the day, so if needed, fast-forward the time by pressing the Right Thumbstick after accessing your Field Guide map.

After she arrives, you’ll get the chance to learn Descendo by completing the associated mini-game, which requires you to guide your wand following the pattern on the right side.

Vlad Susanu

Founder and Senior Content Producer at GameClubz, Vlad is the former CEO of VGFAQ.com and Primewikis.com. He's been playing video games since 1994 and likes keeping up with the latest releases, increasing his collection of PlayStation trophies daily.

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Hogwarts Legacy – Professor Onai’s Assignments

As you progress through Hogwarts Legacy, you’ll receive assignments from Professor Onai, who can be found in the Divination Classroom in The Library Annex. You’ll receive the first assignment during the Find the Prepare for Your Search for the Final Keeper main quest. Below are walkthroughs for these assignments.

Assignment 1

For your first assignment, Professor Onai will task you with collecting a Troll Bogey as well as casting Depulso on a levitated enemy. You can find a Troll Bogey by completing the Troll Control quest in Brocburrow. As for the other task, just find an enemy and use Levioso on them followed by Depulso. With both tasks complete, head to the Divination Classroom during the day to attend class. Speak with Professor Onai afterward to learn the Descendo spell.