Sinking is a system in Basement Moon, a mod for The Binding of Isaac.

A keyword with Potency and Count, each capped at 99. Potency appears to the left of its icon and Count to the right. Gaining only one value also supplies a minimum of 1 of the other value.

Every 50 accumulated damage received, an afflicted enemy gets a random debuff for Potency seconds and loses 1 Count.
Possible debuffs: slow, confusion, burning, bleeding, bait, charm, fear, freeze or poison.
At 45 Potency or more, each trigger also deals extra damage equal to Potency.
Excess accumulated damage carries over; one large hit can trigger multiple times while Count remains. Sinking's own extra damage does not advance its counter.

If Isaac is afflicted with Sinking, taking damage consumes 1 Count and makes (Potency / 9, rounded up) random stat-loss rolls for the current room.
Each roll reduces Speed, Fire rate, Damage, Range, Shot speed or Luck by 0.2. The same stat can be selected more than once. Losses persist when continuing in that room and reset on room entry.

Sinking ends when Count reaches 0. Existing stat losses remain until leaving the room, even if Sinking expires.

• Download Basement Moon from the Steam Workshop.