Altar of Dementia + Dualcaster Mage + Encroaching Mycosynth + Wake the Past

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

URW identity

Commander legal

The 4 combo pieces

• Altar of Dementia
• Dualcaster Mage
• Encroaching Mycosynth
• Wake the Past

How to execute it

1. Cast Wake the Past by paying {5}{R}{W}.
2. In response, cast Dualcaster Mage by paying {1}{R}{R}.
3. Dualcaster Mage enters the battlefield, copying Wake the Past.
4. Activate Altar of Dementia by sacrificing Dualcaster Mage, causing any player to mill two cards.
5. Resolve a copy of Wake the Past, returning all nonland permanent cards from your graveyard to the battlefield and giving them haste.
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 and give them haste