Spirit Mirror + Artificial Evolution + Kudo, King Among Bears

Prerequisites

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Steps

1. 1Cast Artificial Evolution by paying , changing all instances of "Reflection" on Spirit Mirror to "Bear".
2. 2Activate Spirit Mirror by paying , destroying target creature as it is a Bear due to Kudo.
3. 3Repeat step 2 as desired.
4. 4You may repeat step 2 whenever a creature enters the battlefield under an opponent's control.

Effects

• Destroy all creatures opponents control
• Destroy each creature that enters the battlefield under an opponent's control
• Lock