Whenever a nontoken creature enters the battlefield under your control, you may pay . If you do, create a token that's a copy of that creature, except it has haste and "At the beginning of the end step, sacrifice this permanent"
To crack a mirror is to provide an opening for the reflection to escape.
![Minion Reflector [Shards of Alara] | The Clever Kobold](http://thecleverkobold.com/cdn/shop/products/5d2a48f9-4f14-4d19-b3dc-3bf3fafac32d.jpg?v=1574218746)
