Separate the problems: cure the status, control the add, respect the floor and only then spend the damage window.
Arrive with the approach resources intact
Before Forest Path, restore healing, keep Nourishment healthy and carry Poison Cure if the route has already shown Poison pressure. The tested Agility and Bleed values in the source are build-specific observations, not universal requirements.
Read the arena before committing
Give the opening seconds to the boss animation and floor. Some attacks can be parried, but do not force every parry while Poison, movement and the extra enemy are already competing for attention.
Cure Poison instead of healing through it
Poison continues draining health while other hazards are active. Avoiding the floor is best; when a mistake happens, Poison Cure prevents normal healing from being immediately consumed by the ongoing status.
Kill the Fey when it steals attention
The extra Fey is worth removing when it causes missed dodges, bad positioning or repeated healing. If the King is already one safe punish from death and the Fey is not disrupting the run, finishing the boss can be the better choice.
Let persistent damage work while you move
Bleed, Poison, Decay or another damage-over-time loop can keep pressure on the King while the character leaves melee range. Prefer a safe reposition over one extra attack that walks through Poison or loses control of the arena.
Know when to reset
A missed dodge alone does not ruin an attempt. Reset when several problems overlap—early healing loss, poor Nourishment, active Poison and an uncontrolled Fey—because dragging a broken run forward teaches less than a clean retry.
What the current report saw after victory
The community report recorded an additional Forest Heart charge, Forest King Tine and three new Spellbooks after the kill. Treat those as reported current-run rewards, not a guaranteed official drop table, and verify them in the client before publishing them as fixed data.