Ashnod's Altar + Dualcaster Mage + Victimize

Prerequisites

• You have two creature cards in your graveyard.
• You control another nontoken creature.

Steps

1. 1Cast Victimize by paying its mana cost
2. 2Holding priority, cast Dualcaster Mage by paying its mana cost.
3. 3When Dualcaster Mage enters, it triggers, targeting Victimize.
4. 4Holding priority, activate Ashnod's Altar by sacrificing Dualcaster Mage.
5. 5Resolve the Dualcaster Mage trigger, copying Victimize
6. 6Resolve the Victimize copy, sacrificing a creature and returning Dualcaster Mage and another creature from your graveyard to the battlefield.
7. 7Repeat from step 3.

Effects

• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers
• Infinite sacrifice triggers