Talk:Hundred Demons Spear, Onikuzushi/@comment-24810872-20150826141741/@comment-26069426-20150826154330

Keep in mind that Penetrate damage is damage from an ability, not from a card. So in this case, the charge only procs once in response to destruction of the monster. The Penetrate damage your opponent receives is damage from an ability, which isn't from a card the way its critical damage is.