Purity

The  is a lunar item in Risk of Rain 2. It is the counterpart to. It reduces all the holder's skill cooldowns by a flat 2 seconds (+1 second per stack), but will make their chance effects less likely to occur by rolling them 1 extra time (+1 per stack) to be unsuccessful.

The following chance-based items can reach 100% chance, and therefore are useful even with the Purity: (and other critical strike items),, ,.

The following chance-based items cannot reach 100% chance, and are therefore less useful the more negative luck the player has:, , , , , , , ,.

Items that have guaranteed effects, such as the or  and, are unaffected by the Purity.