Altar of Dementia + Driver of the Dead + Phantasmal Image

UB identity

Commander legal

The 3 combo pieces

• Altar of Dementia
• Driver of the Dead
• Phantasmal Image

How to execute it

1. Activate Altar of Dementia by sacrificing Phantasmal Image.
2. When Phantasmal Image dies, it triggers, returning itself from your graveyard to the battlefield as a copy of Driver of the Dead.
3. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Phantasmal Image's power.
4. Repeat.

What the combo produces

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