In case you don't know, 
's Energized Strike only critically strikes when the attack associated with it also critically strikes. This isn't the case for 
's Mystic Shot. Mystic Shot cannot critically strike but oddly Energized Strike critically strikes even when it is used with Mystic Shot.
Thoughts?
It probably calculates the critical strike of the energized attack independently since mystic shot applies on-hit effects (crit is probably balled up in that code somewhere) but is coded to not deal critical damage even if the on-hit critical strike would proc.
I'm not saying that definitively, but that's my 
hunch
It's Ezreal, every item brakes when used with him.
It didn't used to work that way, so it's very interesting to me that it does now. Good find OP.
Now it want to try a high crit build with ez
i never liked the 
build anyway
