Spazmatism is the hardest to defeat of The Twins and should be eliminated last. It has 2 forms, the first having a normal eye like the Eye of Cthulu and its second becoming an automaton(robot with brain/AI(artificial intelligence) It will spew flames which inflict Cursed Inferno! debuff. It also shoots Cursed Flame(the spell thing) in the first form. It has a charging attack which will ruin your day a lot. Have Fun!