Concepts for new champ

So rumors are, that the next new champion is going to be an assassin. So I thought up of two character (not the abilities lore or anything just what i think they should look like) 1 design should be an all black, with either purple or red accents, shroud or cloak wearing champ that wields either one big scythe or two small ones. The other design is a child (like annie preferably a boy though) with demonic tenticals protruding from his back.