Refracting Image

You may have Refracting Image enter the battlefield as a copy of any creature on the battlefield, except it gains legion 1 and
"{3}{w}{u}: Exile this creature, then return it to the battlefield under its owner's control." (When a non-token creature with legion 1 enters the battlefield, create a token that's a copy of it.)
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It's easy enough to track. It leaves itself all over the place.