The Librarian will keep gradualy damaging the player until he or the player is dead. Even though he does nothing he damages the player 1/2 a heart every 7 seconds just becase the player's in the same room. He does not particularly do anything, he slowly floats randomly in the room. Librarian is a mini boss that has a chance of appearing in the Library (obviously). Mini Fetuses are like the familiars, but not with Isaac, they can shoot any type of tear Pierces through soul hearts (directly damages normal hearts). Gray, flying ghost that shoots spectral boomerang-like attack (similar to Lil Chubby item). Over time if they're not killed, they will begin to foam from the mouth and leave behind a white trail, however this slows down the Groud, and you when you step in. When they spawn, they constantly charge wherever they move, and don't stop. Grouds are rare replacements of the Charger. Heart of damage on contact or upon death. (twister) The left and right beams come from the arm stumps.Ī Hopper with a Bomb in it's neck, it hops around and explodes for one

When he fires, he will rotate like Mom's Heart, firing up, down, left, and right while turning like it's namesake, Tvister. Tvister is a Double Vis with the arms missing, replaced by two bloody stumps. Everything else after this list are unique monsters created from imagination. Variants are fan-made monsters that are very similar to monsters in the Binding of Isaac both the vanilla version and with WOTL DLC.

Binding of isaac holy light