Overview
The Child is a 400 HP boss likely encountered as part of the late-game narrative sequence alongside The Father and The Mother. With 400 HP The Child is a significant but not extreme HP pool for a late-game encounter and represents a more focused fight compared to the 999 HP endgame bosses.
Strategy
If The Child is fought as part of a sequence with The Father or The Mother, enter with conserved resources rather than spending everything on preceding encounters. Managing ability cooldowns and healing resources across a multi-boss sequence is as important as tactical skill in any individual fight.
With 400 HP the fight should resolve in 8-12 rounds for a competent party. Apply DoT effects early, maintain healer output, and commit burst abilities when The Child approaches critical HP to secure the kill before any escalation phase.