Altar of Dementia + Dualcaster Mage + Encroaching Mycosynth + Roar of Reclamation

Mana needed: {6}{R}{R}{W}{W}

URW identity

Commander legal

The 4 combo pieces

• Altar of Dementia
• Dualcaster Mage
• Encroaching Mycosynth
• Roar of Reclamation

How to execute it

1. Cast Roar of Reclamation by paying {5}{W}{W}.
2. In response, cast Dualcaster Mage by paying {1}{R}{R}.
3. Dualcaster Mage enters the battlefield, copying Roar of Reclamation.
4. Activate Altar of Dementia by sacrificing Dualcaster Mage, causing any player to mill two cards.
5. Resolve a copy of Roar of Reclamation, returning all nonland permanent cards from your graveyard to the battlefield.
6. Repeat from step 3.

What the combo produces

• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite magecraft triggers
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill
• Put all nonland permanents in your graveyard and library onto the battlefield