Talk:Lephantis/@comment-67.5.162.224-20130915233503/@comment-72.70.131.132-20130916000501

My guess is that antimatter drop is considered an explosive attack. If this is the case, then the damage of the attack is applied to the center of mass rather than where you actually hit it. The center of the boss is immune to all damage, ergo you do zero damage. It's a similar reason that it's also immune to the acrid's DoT effect.