In-game pickup line
“Lost protector”
Mechanics
What Lost Fly does
- Lost Fly patrols room edges and obstacles instead of orbiting Isaac.
- In Repentance, enemies near it target the fly and take damage if they touch it.
In a run
Practical note
Use the distraction to shoot enemies while they focus on the fly.
Reference
Game data and sources
The item ID, quality and pool listings, icon, game-file tags, and short pickup line come from the extracted Repentance files. This effect explanation is an editorial summary checked against the references below. Repentance+ can differ.
