Shaco's Clone, from his ult. when its below half health, Activates Warrick's Blood scent passive. i know theres a lot of glitches with that clone, like guardian angel and such. figure id just make sure this ones added... it also makes me think, that it might be worth looking into that, if it does spark blood scent, it might activate Kayle's vengance ability thing as well.

I saw a post already in champion feedback stating that the death of Shaco's clone procced Kayle's ability.

Thanks for posting! We're looking into some fixes.