Predatory Instincts

Predatory Instincts is a returning item in Risk of Rain 2. The duration of the buff applied by this item is multiplied by the Proc Coefficient, base of which is 3 seconds.

The first predatory instincts the player receives increases the maximum number of stacks by 3. Each proceeding predatory instincts will only increase the maximum by 2. The maximum number of stacks is 25, which means there is no reason to have more than 11 predatory instincts (3 + 2X, where X is the number of additional Predatory Instincts).

Trivia

 * The item log refers to the player from the first game. Predatory Instincts is a crit-based item and thus is often paired with the, which was present in the first game as well; the creature with 22 unblinking eyes likely refers to a player with 10 Lens-Maker's Glasses (which gives 100% crit-chance) confronting Providence; 2 eyes + 20 lenses from the glasses.