New Supp Champ Idea

Ok I been thinking abou this new champ idea for awhile. Basically it's a champion that can attach itself to other champs. My pal and i imagined it either as a parasite or some lil cherub thing. Basically when its attached its spells are different than when its on its own. While attached it grants buffs and maybe a shield to whomever they are attached. Just wanted to get the idea out there.