A blue fly-spider hybrid. Hive Mind is a passive item introduced in The Binding of Isaac: Rebirth.
Increase the size of Isaac's blue flies and spiders (Not including Forever Alone or Distant Admiration), making them deal double damage to enemies.
- This item is useless at its own, as it only effects friendly flies and spiders.
- This item belongs to the Lord of the Flies set. Collecting Hive Mind and 2 fly-based items will transform Isaac into Lord of the Flies.
- Mom's Wig - Allows Mom's Wig to spawn up to 10 spiders instead of 5, while also retaining doubled damage.
- The Mulligan/Guppy - Doubles the damage of all blue flies created, greatly increasing the damage output.