Planula

The Planula is a boss item in Risk of Rain 2, dropped by the.

Whenever the holder takes damage, they immediately heal 15 HP (+15 HP per stack), making it extremely useful against monsters that attack with rapid, low-damage hits.

Tips

 * Works well with the to recoup HP lost while burning.
 * makes excellent use of the Planula, since it heals them when they pay HP for abilities.
 * This item can pair well with the to further mitigate damage, although both these items fall off in effectiveness as the difficulty increases.

Trivia

 * Inside the egg, a tiny can be seen.
 * While written to sound humorously confusing, this item's logbook entry suggests that the Parent species has a similar life cycle to that of stars; they start out normal-sized, expand into giants over time, and then collapse into smaller versions, which are the oldest. This may also explain why the species glows brightly, and why Grandparents have a "sunlight" attack.
 * Since this item's logbook entry reveals that Children from Risk of Rain 1 are actually the eldest of the Parent species, their disappearance from Risk of Rain 2 may potentially be a result of the Survivor from the first game killing them, and the younger Grandparents not yet having aged into Children.