Infestation

Effects

• (Removed in Repentance) 1-3 Blue Flies randomly spawn whenever Isaac takes damage.
• (Added in Repentance) 2-6 Blue Flies randomly spawn whenever Isaac takes damage.

Interactions

• (Added in Afterbirth †)(Fish Tail) Fish Tail: Doubles number of flies spawned.
• Hive Mind: Flies are bigger and deal double damage.