Altar of Dementia + Ashcloud Phoenix + Intruder Alarm + Skirk Alarmist

UR identity

Commander legal

The 4 combo pieces

• Altar of Dementia
• Ashcloud Phoenix
• Intruder Alarm
• Skirk Alarmist

How to execute it

1. Activate Altar of Dementia by sacrificing Ashcloud Phoenix.
2. When Ashcloud Phoenix dies, it triggers, returning itself from your graveyard to the battlefield face down.
3. When Ashcloud Phoenix enters the battlefield, Intruder Alarm triggers, untapping all creatures.
4. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Ashcloud Phoenix's power.
5. Activate Skirk Alarmist by tapping it, turning Ashcloud Phoenix face up.
6. Repeat.

What the combo produces

• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite mana creatures you control can produce
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill
• Infinite untap of creatures