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

Planula
Boss item (yellow)
Every hit you take heals you 15. Great against lots of small hits. Each extra one, 15 more.
Game text: «Heal from incoming damage for 15 (+15 per stack).»
Stacking: Each copy adds the same, no cap.
Watch out: It heals before the hit lands, with damage over time and falls too; not with void fog.
It has a void version: Newly Hatched Zoea. Pick that up and every copy of this item turns into it.
| 1 copy | 2 copies | 3 copies | 5 copies | 10 copies |
|---|---|---|---|---|
| 15 | 30 | 45 | 75 | 150 |
Each copy adds the same.
healing extends Sojourn.
heals double.
small hits that barely hurt and heal on top.
Dropped by a teleporter boss: each green item it drops has a 15% chance to be this one.
Unlocked from the start: it can show up in any run.
Every hit you take heals you 15. Great against lots of small hits. Each extra one, 15 more.
Stacking: Each copy adds the same, no cap.Watch out: It heals before the hit lands, with damage over time and falls too; not with void fog.
Dropped by a teleporter boss: each green item it drops has a 15% chance to be this one. 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).