Talk:Optic Staff/@comment-25140987-20150821070819

This article mentions "piercing damage". Is piercing damage explained anywhere on the wiki? (If so, I can't find it.)  How exactly is it different from other damage? What deals it? How can I recognize it in-game?

Does "6 times per second" really mean 6 times per second, or 1 time per 1/6 second? (i.e. if you have 6 of these all fire lasers at something at the same time, does only one of them hit?)  Or something else?