The Clashroom is Clash Royale's limited-time trivia event for Season 87 "Minion Academy," and it runs for a handful of days in late September 2026. You watch three lessons, then take a Final Exam of 8 randomized questions — and the higher your grade, the better the chest you keep. Below is the full verified answer key for every question in the pool, plus the one mechanic that stops most players collecting the top reward.
Quick answer: how the Clashroom Final Exam works
In a hurry? The Final Exam pulls 8 questions at random from a 30-question pool. Score 80–100% (grade A) and you earn a Hero Ice Wizard emote plus a 3-Star Magic Lucky Chest. You can retake the exam as many times as you want, but you can only claim the reward once — so do not tap claim until you have aced it. The full answer key is below.
Clash Royale added The Clashroom as a community event tied to Season 87 "Minion Academy" (the season that launched 7 September 2026 with the new Minion Giant card and Hero Ice Wizard). It is a themed "study, then get tested" event: three short lessons — Biology, History and Physics — followed by a graded Final Exam. Because the exam questions are drawn from a fixed pool, you can memorise the answers in advance, walk in, and grade an easy A.
This guide is built from the official in-game Clashroom event page and the live question set, and every answer below has been cross-checked. Where a fact is time-sensitive (an event, a season, a reward tier) it is dated so you know exactly what it applies to.
What are the Clashroom rewards for each grade?
Your reward is decided by your highest grade across all attempts, straight from the official event screen. Here is the exact ladder:
| Final Exam grade | Score | Reward |
|---|---|---|
| A | 80–100% | Hero Ice Wizard Emote + 3-Star Magic Lucky Chest |
| B / C | 50–79% | 2-Star Magic Lucky Chest |
| D | 30–49% | 1-Star Magic Lucky Chest |
| F | 0–29% | 1 Gold |
The official event page is blunt about the value gap between an A and an F:
"The better the grade, the better the reward. So study up and don't cheat!" — The Clashroom event page, Supercell
For reference, a Magic Lucky Chest is one of the better free chests in the game: per Supercell's own chest-info post it runs 4 spins and can drop cards, Gold, Wild Cards, Evolution Shards and cosmetics (supercell.com). A 3-Star version of it is a genuinely worthwhile pull for a few minutes of trivia — which is why grading an A matters.
The one rule that costs players the A: don't claim early
This is the mistake flooding the Clash Royale subreddit right now. The Final Exam is retakeable an unlimited number of times, and your reward is set to the best grade you have ever scored — but the moment you claim, the event locks in whatever you have at that instant.
Straight from the official event page:
"You can retake the exam as many times as you like, but you can only claim your reward ONCE, so make sure NOT to claim your rewards right away. Your reward will be determined by the highest grade you achieve across all your retakes." — The Clashroom event page, Supercell
So the correct play is simple: take the exam, check your grade, and if it is not an A, retake it before touching the claim button. One player who scored a perfect 8/8 but tapped claim on an earlier low attempt is exactly who this warning is written for.
Clash Royale Clashroom answer key — all 30 Final Exam questions
The exam serves 8 questions per attempt, chosen at random from the pool below. The correct answer is bolded. Work through the list once and you will recognise all eight on the day.
Biology (Minion Giant's slime)
- Which part of Minion Giant's body produces the hydrochloric acid in his slime? → Parietal cells
- Minion Giant's protective mucin layer suddenly stops trapping bicarbonate — what happens? → His stomach lining becomes more vulnerable to acid damage
- What makes Minion Giant's attack so slimy? → Extra mucin released by specialised mucous cells
- Minion Giant's slime loses its green colour but everything else works — which ingredient is missing? → Bile
- Minion Giant's slime is highly corrosive and unusually thick — which two components explain that? → Hydrochloric acid and mucin
- Which sequence explains how the slime gets from his stomach to the target? → Medulla oblongata triggers the vomiting reflex → core muscles compress the stomach → contents are forced up the esophagus
- How much slime can a Minion Giant produce? → 2.65 gallons
- Why does Minion Giant's slime smell so bad? → Hydrogen sulfide
Physics (Hero Ice Wizard's freeze)
- Which scientific explanation best describes Hero Ice Wizard's ability? → He kick-starts an instant freezing process
- What specific branch of science explains it? → Thermodynamics
- What scientific phenomenon explains the instant freezing? → Nucleation
- What is the chemical formula of the Frosty Fella? → H₂O
- What happens once one seed starts to form? → It tells the other liquid water molecules to crystallise right away
- What does the still-liquid Fella need to suddenly crystallise? → A seed to kick-start nucleation
- Where does the water for the ice come from? → Atmospheric H₂O
- What should Hero Ice Wizard avoid so his blast doesn't go off too early? → Bumping or shaking it
- What is required for him to instantly freeze his targets? → Almost-frozen water kept still before triggering crystallisation
- How long do you pre-freeze water to recreate the blast at home? → 2 hours
- When he freezes an opponent, what is really happening? → He's removing thermal energy from his opponent, causing it to freeze
History (real battlefield tactics)
- Which ancient battlefield force is most comparable to Minion Giant breaking through defenses? → King Pyrrhus' war elephants
- Based on the Normans at Hastings, how do you counter a strong defense? → Bait your opponent's troops out of position, then counterattack
- Blue King draws troops forward before a counterattack — whose tactic is that? → The Normans at Hastings
- You freeze an approaching Hog Rider with Ice Wizard — which historical strategy is that? → Hannibal using the freezing river to weaken the Romans before battle
- Ice Wizard weakens a push, then Minion Giant breaks through — which two commanders inspire that? → Hannibal and King Pyrrhus
- When Ice Wizard blasts his Fella, he's pulling a… → Hannibal of Carthage
- Castles like the Arena became common in Europe mainly because… → They helped nobles defend land and control territory
- Which in-game move best copies King Pyrrhus's tactic at Heraclea? → Dropping Minion Giant at the bridge to slime-blast through enemy defenses
General knowledge / logic
- Minion Giant fires 5 slime blasts and 4 hit — what percentage were successful? → 80%
- A Rage spell has a radius of 2 meters — what is the diameter of its area? → 4 meters
- Which sentence is grammatically correct? → Knight has a shield
What is the Clashroom event and who are the teachers?
The Clashroom is framed as an actual school. You attend three subjects, each taught by a guest "teacher," before sitting the exam. Per the official event page, the roster is:
- Zach Murphy — founder and lead educator of Ninja Nerd — teaches the Biology behind Minion Giant's slime blast.
- Mr. Terry — teaches how Clash Royale strategy mirrors real historical battles.
- Nancy Bullard — an award-winning science teacher — demonstrates the Physics behind Hero Ice Wizard's Frosty Fella.
You have to watch all three lessons and the "Science Royale" video to unlock the Final Exam — the exam stays greyed out with a "Complete all lessons to unlock!" prompt until then. Each lesson also has its own short quiz that pays out a smaller Magic Lucky Chest, so it is worth clearing those on the way through.
How long is the Clashroom event live?
The in-game announcement described the Clashroom as a limited-time community event lasting a few days, with new lesson content rolling out across the run before the Final Exam opens near the end. It is themed around the Season 87 "Minion Academy" content, so it sits inside the same window as the Academy Antics album event (7 September – 5 October 2026). Treat it as a late-September 2026 event and don't leave the exam to the last minute — once it rotates out, the reward is gone. If the event is still showing on your Events tab, you still have time to grade your A.
Why the answers are worth memorising
Two hard numbers make the case. First, the exam draws 8 of 30 possible questions, so knowing the full pool guarantees you recognise every question you are served. Second, the reward jumps from 1 Gold at grade F to a Hero Ice Wizard emote plus a 3-Star Magic Lucky Chest at grade A — the difference between "nothing" and one of the best free chests available, for the same five minutes of tapping. There is no downside to walking in with the key.
If you are new to Season 87, it is also worth reading up on the two cards the whole event is built around — our Minion Giant guide and Hero Ice Wizard breakdown explain what they do on the battlefield, not just in the classroom. For the current meta after the September patch, see our best Clash Royale decks for September 2026.
FAQ
What are the answers to the Clash Royale Clashroom Final Exam? The exam serves 8 questions at random from a fixed 30-question pool covering Biology (Minion Giant's slime), Physics (Hero Ice Wizard's freeze) and History (real battles). The full verified answer key for all 30 questions is listed in the section above — learn the pool once and you will recognise every question the exam gives you.
How do I get an A on the Clashroom Final Exam? Score 80% or higher — that means getting at least 7 of your 8 questions right. Use the answer key above, and if you slip below an A, retake the exam before claiming. Your reward is based on your best grade across all attempts.
Why can't I claim my Clashroom reward again after retaking? Because the event only lets you claim once. The reward locks to whatever grade you had when you tapped claim. If you claimed early on a low score, that grade is final — which is exactly why the official advice is to not claim until you have your A.
What do you get for grade A in the Clashroom? A Hero Ice Wizard emote plus a 3-Star Magic Lucky Chest. Grade B or C gives a 2-Star Magic Lucky Chest, grade D gives a 1-Star Magic Lucky Chest, and grade F gives just 1 Gold.
Do the Clashroom lessons give rewards too? Yes. Each of the three lessons (Biology, History, Physics) has its own short quiz that pays out a Magic Lucky Chest, on top of the Final Exam reward. You must complete all three lessons and the Science Royale video before the Final Exam unlocks.
Is the Clashroom the same as the Academy Antics event? No, but they overlap. Academy Antics is the Season 87 album event (7 September – 5 October 2026) that rewards Minion Giant cards; the Clashroom is a separate short-lived trivia event running inside that same season. Both are themed around Minion Academy.
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