Pyromaniac

Effects

• +5 (Bomb) Bombs.
• All explosions heal Isaac instead of damaging him. If Isaac has no Red Heart containers or full health, no damage is taken.
  • (Removed in Repentance) Explosions heal one full Red Heart.
  • (Added in Repentance) Explosions heal one half Red Heart.
• (Added in Repentance) Grants immunity to damage from (Fire Place) Fire Places or enemy fires, but does not heal Isaac.
  • It does not protect the player from taking damage from the (White Fire Place) White Fire Places in (Downpour) Downpour II, making it still possible to acquire Knife Piece 1.

Notes

• (Removed in Repentance) Pyromaniac is a Special Item.
• (Removed in Repentance) Makes the player immune to (Mom) Mom's, (Satan) Satan's, and other enemies' stomp attacks, making those fights substantially less difficult.
  • Due to the immunity to Mom's stomping attack, (Mom's Toenail) Mom's Toenail has improved usefulness.
• (Removed in Repentance) Makes the player immune to (The Cage) The Cage's, (The Adversary) The Adversary's, (Mega Satan) Mega Satan's, and (Added in Afterbirth †) (Ultra Greedier) Ultra Greedier's rock wave attack.
• The item is unable to produce (Soul Heart) Soul Hearts, (Black Heart) Black Hearts, or (Eternal Heart) Eternal Hearts, making Pyromaniac a little less effective if used with (???) ???, (Dark Judas) Dark Judas, (Added in Repentance) (Tainted Judas) Tainted Judas, (The Lost) The Lost, (Tainted Forgotten) Tainted Forgotten, or (Tainted Bethany) Tainted Bethany. However, these characters still gain immunity to explosions, with (Tainted ???) Tainted ??? benefiting the most out of all.
• (Removed in Repentance) Makes the player immune to fires left behind by enemies and their hot bombs, as well as projectiles from (Red Fire Place) Red Fire Places and (Purple Fire Place) Purple Fire Places, but not the fireplaces themselves.
• (Added in Afterbirth † / Removed in Repentance) (Ultra Greedier) Ultra Greedier uses explosive attacks almost exclusively. As a result, Pyromaniac makes characters nearly invulnerable against him.
• One of only two items that grant full immunity to explosive damage, the other being (Added in Afterbirth) Host Hat.

Synergies

• (Added in Afterbirth) Curse of the Tower: Whenever Isaac gets hit, numerous healing troll bombs fill the room, nullifying nearly any red heart damage taken.
• Dr. Fetus / Epic Fetus / Ipecac: Explosions heal Isaac, essentially making him invincible as long as he has more than one red heart container and a decent rate of fire.
• Kamikaze!: Provides an unlimited source of explosions which will heal.