just requires fight knowledge and planning. Bosses dont non stop auto attack you on savage they usually do a buster, do a cast bar mechanic, more autos, another mechanic, tankbuster etc. You can tbn tail swipes and twin bolt, or catastrophes auto nukes and still have it up for double cleave, use it for o3s first crit and one aoe and the next pair of autos and the next ch. You dont spam it off cd you time it right so it becomes a strong "in between" mitigation as well as a pair up with another cd for a buster