Этот баг будет легче всего повторяться, если во время шреда таргет будет поворачиваться лицом. Такая проблема была и у близзардов в тбк, но они его пофиксили:
https://web.archive.org/web/20121111...ng-deterrence/
It's a leftover mechanic from TBC. Backstab/shred/ambush (and mut back then) were getting dodge/parried/blocked on targets that were in the motion of turning around. So their fix was to make those abilities not avoidable since that is the case with attacks from behind anyways