POSSESSION
Duration1 min
TriggerScheduled
Effects
A third of the players online (picked from those hitting in the last 30 s) are possessed: their hits heal the boss instead, and the feed shows it. Everyone else's damage fills the exorcism (1% of max HP).
Rewards
Exorcise them: every helper gets an IRON CHEST. Possessed players who kept swinging get one too.
How often
4.5% when a scheduled event is selected.
Source: official game library. Scheduled percentages describe event selection, not the chance per attack.