Altar of Dementia + Havi, the All-Father + Sakashima the Impostor

RGWU identity

Commander legal

The 3 combo pieces

• Altar of Dementia
• Havi, the All-Father
• Sakashima the Impostor

How to execute it

1. Activate Altar of Dementia by sacrificing Sakashima the Impostor.
2. When Sakashima the Impostor dies, it and Havi trigger.
3. Resolve the Havi trigger, returning Sakashima the Impostor from your graveyard to the battlefield as a copy of Havi.
4. Resolve the Sakashima the Impostor trigger, returning any legendary creature card with mana value 5 or less from your graveyard to the battlefield.
5. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Sakashima the Impostor's power.
6. Repeat.

What the combo produces

• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill
• Return some creature cards from your graveyard to the battlefield