I'd really love to see someone with Leoric's gameplay from HotS in LoL

This doesn't mean we need a Skeleton King in League, as Riot still has the "no skeletons in-game" rule going, but the gameplay is solid. It'd just need a new visual template.

I particularly like the idea of his second Heroic ability, March of the Black King, being used on a juggernaut. Several nasty swings that could do tons of damage, but easily dodged if you aren't set up or if your target has good mobility or Flash.