User blog comment:Atmey/Jaljala the Time Ninja/@comment-5791947-20130226012543/@comment-5791947-20130226065248

Ah, yes 121.1.52.22 made a good point. As an assassin you don't want to stay on the teamfight too long. You're supposed to dish out everything on your target of choice in a very short amount of time before the enemy realizes your presence, then get out before you get focused. Stacking up 20 will take quite a long while, which you might as well play him as a bruiser instead, which works like (except now with double gap closers), benefiting him the longer he fights because of the 30% damage boost at max stacks.