Common item (white). What the game says, what it really does, what each copy adds and what it pairs with.

Repulsion Armor Plate
Common item (white)
Every hit you take does 5 less. Great against lots of small hits. Each extra plate takes off 5 more.
Game text: «Reduce all incoming damage by 5 (+5 per stack). Cannot be reduced below 1.»
Stacking: Each plate takes 5 more off every hit, no cap; a hit never goes below 1.
Watch out: Shines against lots of small hits and burns.
| 1 copy | 2 copies | 3 copies | 5 copies | 10 copies |
|---|---|---|---|---|
| 5 | 10 | 15 | 25 | 50 |
Each copy adds the same.
the cheap defence of any run.
taking less damage extends Sojourn.
Drops from small chests, white printers and almost anything that gives items.
Unlocked from the start: it can show up in any run.
Every hit you take does 5 less. Great against lots of small hits. Each extra plate takes off 5 more.
Stacking: Each plate takes 5 more off every hit, no cap; a hit never goes below 1.Watch out: Shines against lots of small hits and burns.
Drops from small chests, white printers and almost anything that gives items. Unlocked from the start: it can show up in any run.
Sources: the game's English text (name and description), the Risk of Rain 2 wiki (riskofrain2.wiki.gg: this item's page, read on 31 October 2026; numbers, stacking formula and notes) and the wiki's survivor pages. The plain-words text and the synergies are ours. Icons: Risk of Rain 2 (Hopoo Games / Gearbox).