Angel of Indemnity, Altar of Dementia, and Felidar Guardian

Prerequisites

• Angel of Indemnity on the battlefield
• Altar of Dementia on the battlefield
• Felidar Guardian in hand
• undefined

Steps

1. Cast Felidar Guardian by paying
2. When Felidar Guardian enters the battlefield, it triggers, targeting Angel of Indemnity
3. Holding priority, activate Altar of Dementia by sacrificing Felidar Guardian
4. Resolve the Felidar Guardian ability, blinking Angel of Indemnity
5. When Angel of Indemnity enters the battlefield, it triggers, returning Felidar Guardian from your graveyard to the battlefield
6. Repeat from step 2 any number of times
7. Resolve all abilities from step 3, milling any number of players any number of cards

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite mill
• Infinite self-mill