Effects | No damage from Explosions and Fire when at 4 HP or less; Explosions cannot bring you down to under 4 HP; Explosions no longer ignore Player invincibility frames |
Boiling Veins provides immunity to all explosions and fire when at 4 HP or less and makes you unable to be damaged below that HP by them. It also makes them unable to pierce your invincibility frames, meaning explosion damage is essentially halved.
Being a Weapon Mutation, Boiling Veins contributes to Heavy Heart.