Quote (UndeadGad @ 30 Jul 2012 09:54)
somebody did some math in dota at least and
the more armor a hero have the less you will get out of shield breaker, vs high armor attack speed ( example wingbow / charged hammer ) will give much more damage output
attack speed doesn't give a crap if the target has low or high armor (except of charged hammer lightnings).
also shieldbreaker on high armor targets is as effective as on low armor targets, because the increase of EFFECTIVE hp by increased armor is a linear function