Lost Fly

Item Icon
Pickup Quote	"Lost protector"
Entity ID	5.100.365
Item Pool	Baby Shop Key Master Treasure Room Treasure Room
Quality	0
Item Tags
Collection Grid	(page 4, column 0, row 0) (page 4, column 0, row 0) (page 4, column 1, row 1)

Lost Fly is a passive item added in The Binding of Isaac: Afterbirth expansion.

Effects

• Spawns a fly familiar that moves in a straight line and attaches itself to the first wall or obstacle it comes into contact within each room.
  • The Lost Fly will then move around the room functionally similar to the Guts.
• If any enemies walk into its path, it will deal 7 contact damage per tick or 105 damage per second.
• If the obstacle it is attached to is destroyed then it will continue rolling in the direction it was previously traveling until it meets another wall or obstacle.

Notes

• This item belongs to the Beelzebub set. Collecting three items from this set will transform Isaac into a giant humanoid fly.

In-game Footage

The Binding of Isaac: Rebirth
Achievements	Attributes	Bosses	Cards and Runes	Challenges	Chapters
Characters	Co-op	Items	Item pools	Monsters	Objects
Pickups	Pills	Rooms	Seeds	Transformations	Trinkets