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

Aegis
Legendary item (red)
Healing beyond your max health turns into a layer of temporary health. Each extra one, a bigger layer.
Game text: «Healing past full grants you a temporary barrier for 50% (+50% per stack) of the amount you healed.»
Stacking: Each copy adds the same, no cap.
| 1 copy | 2 copies | 3 copies | 5 copies | 10 copies |
|---|---|---|---|---|
| +50% | +100% | +150% | +250% | +500% |
Each copy adds the same.
the circle overheals: barrier.
double the excess healing.
every excess crit heal is barrier.
Drops from legendary chests and, less often, from large and small chests.
Unlocked from the start: it can show up in any run.
Healing beyond your max health turns into a layer of temporary health. Each extra one, a bigger layer.
Stacking: Each copy adds the same, no cap.
Drops from legendary chests and, less often, from large and small chests. 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).