Smart Fly

Smart Fly is a passive item.

Effect

 * Spawns an orbital fly whose behavior changes depending on whether or not Isaac has taken damage in the current room.
 * Before Isaac takes damage, the fly serves as an orbital familiar, blocking enemy shots.
 * After Isaac takes damage, this fly will seek out nearby enemies and attack them, dealing 1.5 damage per tick.

Seeds
CAKK GWMX (First floor treasure room) YYH2 YJ4B (Treasure room adjacent to spawn) WV2E FB1R (First floor treasure room) 1ZTZ EC7A (First floor treasure room)