The other thing about this artifact is that all levels start at 6% according to the thread. I know the general cuirass one was all 11% and there was one before this one, I think a sword but I don't know if that one was all 11% or 6%. It's utterly stupid that they hide the pricing per tier. Yes you can eventually look it up but like I've said about the other ones, there will always be people being tricked thinking you just need to make one purchase to get it. Before people say you should be reading the fine print, it merely says to unlock the tiers to get the items. It doesn't clearly say that each tier is a different price.