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] | Cracking-Singles](http://www.cracking-tcgsingles.com.au/cdn/shop/products/50a27943-f08c-4cbd-affb-8e59411b3d4f.jpg?v=1622035939)
