Crypt Champion, and Mirror Image

Prerequisites

• Crypt Champion on the battlefield
• Mirror Image in hand
• without using available

Steps

1. Cast Mirror Image by paying , without using , having it enter the battlefield as a copy of Crypt Champion
2. Mirror Image enters the battlefield, triggering its first and second abilities
3. Resolve the second Mirror Image trigger, causing you to sacrifice it
4. Resolve the first Mirror Image trigger, returning Mirror Image from your graveyard to the battlefield as a copy of Crypt Champion
5. Repeat from step 2

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers