Best solo carry supports?

Simple post, who can I 1 trick and carry with. I played a lot of Pyke but he's too team/DMG reliant when behind, can't Ult when no one does DMG. I'm thinking Pantheon or karma, or one of the cheese bard builds. Someone I can roam with.

EDIT: don't mean solo carry, meant spoon feed my team kills, playing raka with a ADC that gets hooked doesn't work.