Unlocking Deku in Reign Piece takes more than grinding levels. The new spec, based on Izuku Midoriya from My Hero Academia, is locked behind a dedicated dungeon, a boss fight with a massive HP pool, and a list of rare materials that only drop through repeated farming. On top of that, players need to attempt a low-odds race change before the unlock is even complete.
None of these steps are optional, and skipping ahead without the right materials just wastes time at the Deku Power NPC. Knowing exactly what to farm, where to farm it, and in what order saves a lot of grinding.
What Do You Need to Unlock Deku in Reign Piece?
Head to Gauntlet Island and talk to the Deku Power NPC to see the full checklist. The NPC lists every item and currency amount needed before the spec unlocks.
| Requirement | Amount |
|---|---|
| Y$ | 50,000,000 |
| C$ | 3,850,000 |
| Fame | 250,000 |
| Infinity Residue | x100 |
| One For All Vestige | x25 |
| Divine Fragment | x3 |
| Deku’s Glove | x2 |
| Augmented Race | x1 |
Currency and Fame build up naturally through regular play, but three items on this list won’t come easy. One For All Vestige, Deku’s Glove, and the Augmented Race all sit behind the dungeon’s random drop system, so plan on repeated runs before your inventory fills up.
How to Access the Deku Boss Dungeon in Reign Piece
The dungeon sits on Gauntlet Island and acts as the only source for Deku-specific materials. Getting inside takes just a few steps.
- Travel to Gauntlet Island.
- Look for the green portal near the dungeon entrance.
- Talk to the Gauntlet NPC standing by the portal.
- Pick a difficulty level before starting.
- Fight through the waves until you reach Wave 10.
- Defeat the Deku Boss that spawns there for your drops.
The Deku Boss carries 16,000,000,000 HP, so a weak build will struggle to clear Wave 10 quickly. Bring upgraded gear and a strong loadout before attempting higher difficulties.
The item pool stays identical across every difficulty setting, even on easy mode. What changes is the chance of getting each drop. Pick the toughest difficulty your current build can handle without wiping, since that trims down how many total dungeon clears you’ll need to finish the checklist.
Deku Boss Drop Rates in Reign Piece
Every kill on the Deku Boss rewards a mix of guaranteed and chance-based drops. Here’s the full drop table.
| Drop | Drop Rate | Type |
|---|---|---|
| Boss Coin | 100% | Material |
| Mythical Chest | 100% | Material |
| One For All Vestige | 23% | Material |
| Deku’s Glove | 2.30% | Material |
| Clan Relic | 17.25% | Material |
| Daily Spin | 1.15% | Material |
| Deku’s Costume | 1.72% | Accessory |
| Heirloom of Fortune | 0.75% | Heirloom |
| Limitbreak Stone | 0.40% | Material |
Deku’s Glove is the biggest bottleneck in the whole unlock chain. At a 2.30% drop rate, it takes far more boss kills to secure than the other materials on this list. One For All Vestige drops far more often at 23%, but you’ll still need a large stockpile since it also feeds into the Augmented Race requirement below.
How to Unlock the Augmented Race in Reign Piece
The Augmented Race doesn’t drop directly from the boss. Instead, you earn it by using One For All Vestiges you’ve already collected.
Each Vestige gives a 3% chance to grant the Augmented Race when used, so a single attempt rarely succeeds.
A few things worth knowing before you start using them:
- A successful roll replaces whatever race you currently have equipped.
- Hold onto your Vestiges instead of using them one at a time as they drop.
- Using a large batch at once gives you more shots at the 3% chance in a shorter span.
Since the odds are low, stack up extra Vestiges beyond the 25 needed for the direct requirement before committing to the race change attempts.
Final Tips for Unlocking Deku in Reign Piece
Focus your farming on the Deku dungeon early, since Deku’s Glove and the Augmented Race attempts both take the longest to complete. Stockpiling extra One For All Vestiges before trying for the Augmented Race also saves you from running the dungeon again mid-attempt. Once the currency, Fame, and material requirements are met, the rest comes down to clearing Wave 10 consistently on the highest difficulty your build allows. Play Now!
Frequently Asked Questions
Where is the Deku Power NPC located?
The NPC is on Gauntlet Island. You can view the full unlock requirements by speaking to it directly.
What wave does the Deku Boss spawn on?
The Deku Boss appears at Wave 10, the final wave of the dungeon. Every earlier wave has to be cleared first.
What is the drop rate for Deku’s Glove?
Deku’s Glove drops from the Deku Boss at a 2.30% rate, making it one of the rarest items needed for the unlock.
Does difficulty level change which items can drop?
No. Every difficulty, including the easiest setting, has access to the same drop pool. Higher difficulties only increase the chance of getting each item, not which items are available.
How many One For All Vestiges do I need for the Augmented Race?
There’s no fixed number since each Vestige only has a 3% chance to succeed. Stockpiling extra copies beyond the 25 required for the unlock improves your odds before you start using them.
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