Shouldn't count destruction as part of standing fort bypass. It has a 3 sec internal CD for you, so if only you where running it would take 45 sec to get max stacks. Even in a group of 6 it would take 9 seconds, both of which are too long of a fight for a trash mob.
Fair enough. So it's "only" 113% fort bypass which is still plenty for trash mobs. Against red/purple named where it can matter, it doesn't factor in sources from other builds in the group/raid like Assassin's Trick, Cracking Attack, etc.
Khyber: Ying-1, Kobeyashi, Nichevo-1 | 75 million Reaper XP