So not all champions build crit, so crit animations on many champions never get to be shown. A while back, someone suggested that ravenous hydra should proc crit animations, but that would still leave a lot of champions without ways to see their crit animations.
What if sheen items proc'ed crit animations? That way you could see even some mage's crit animations, and tanks that build iceborn gantlet.
kitcat3005 votesI remember a long time ago, someone suggested the same thing for lich bane since some mages have crit animations. A rioter did say he liked the idea and would pass it on, but I have no idea if it went through or not.
Ii is a good idea though. Feels like some of that work to give some champions crit attacks just goes to waste.
Rortarion3 votesI think that would be awesome, personally.
Remlap12232 votesI'd like that. Bump for Karthus Sheen Crit!
Voidzilla2 votesI like this idea. Would make crit animations for a lot of characters actually worthwhile.
dialMARK4acti0n1 votesAgree a hundred percent
Demolisher Nunu1 votesI would agree to this
MonkeyPrinceZhe1 voteslegit idea
Pikmints1 votesA crit is when an attack does more damage than usual, Sheen causes your basic attack after you cast a spell to deal more damage than usual. Makes enough sense to me.
The only practical problem that 'may' arise from this is if someone begins the crit animation and when the basic attack registers the proc has expired, because, in theory, that would display the crit animation but the attack would deal regular damage. This is something that I believe the normal crit stat doesn't run the risk of, and thus would be the only inconsistency with this animation.
Granted, it's simply a matter of of a minor animation mismatch and wouldn't be seen that much, I still upvoted the idea and love it.
kanacho1 votesI agree, it actually helps with readability which is one of the key aspects that Riot tries to implement.
WolfBV1 votesAll mages with crit animations shall be played as an adc. So it is said so it shall be. 
GuiltyGecko1 votesWell Lich Bane has a sheen component, so it would just proc on that instead :P. Dont' need trinity force!
ParinoidPanda1 votesLove this idea. You have my vote.
Saint Tyrone 1 votesHope riot does this. Have an upvote.
The5lacker1 votesI'd be a-okay if the Spellblade line forced crit animations.