BoostDamage

This item is exclusively found on Elite monsters and to ghosts spawned from Happiest Mask in order to multiple their damage, with each instance of this item granting a 0.1 damage multiplier.

Tier 1 Elite monsters are given 10 of these, Tier 2 Elites are given 50 and Ghosts receive 150.

Trivia

 * This item does not have a name, as it's only referred to in code.