Whenever a nontoken creature enters the battlefield under your control, flip a coin until you lose a flip. For each flip you won, create a token that's a copy of that creature. Those tokens gain haste. Exile them at the beginning of the next end step.
![Mirror March [Ravnica Allegiance] | Dumpster Cat Games](http://www.dumpstercatgames.com/cdn/shop/products/50a27943-f08c-4cbd-affb-8e59411b3d4f.jpg?v=1609846769)
