[{quoted}](name=Warlord Rhinark,realm=EUW,application-id=3ErqAdtq,discussion-id=sghzXnYo,comment-id=000000010000,timestamp=2018-06-19T11:04:54.108+0000)
When you deal one billion damage per auto, healing for 47% of the damage done makes it stronk.
Well no. 10000 times no.
When you deal one billion damage per auto, one lifesteal item is enough to sustain yourself through the fight, what you need is tankiness to survive burst and things to outplay CC, like a QSS.
Your build is crit and doesn't even have 100% crit. You have 0 armor, 0 mr. You have no real burst.
Death's dance doesn't heal anything off true damage (which you would be doing in any case cause IE).
If you want to really have an almost one shot build where they die before they can react it would look more like :
(and still since crit got changed it kinda sucks crit isn't 2.5x anymore)
If you want a pseudo viable crit build it would look more like

(well I'm talking about absolute 6 items builds in ultra lategame but ofc during the game you'll have boots)
In any case crit Yi builds as of right now are kind of garbage. On-hit can just deal more with more defensive item slots.