Illusion of Elves

Blue Elf tokens you control get -1/-0 for every other Blue elf token on the battlefield under you control.
{t}, Return Illusion of Elves to its owner's hand, put a 2/2 blue elf illusion creature token onto the battlefield under your control.
You know they don't exist, you know they can't harm you but you can't seem to stop your skin crawling when they're around.
-- Lorik, Forester