Ashnod's Altar, Dualcaster Mage, and Ascend from Avernus

Prerequisites

• Ashnod's Altar on the battlefield
• Dualcaster Mage in hand
• Ascend from Avernus in hand
• available

Steps

1. Cast Ascend from Avernus by paying
2. Holding priority, cast Dualcaster Mage by paying
3. Dualcaster Mage enters the battlefield, creating a copy of Ascend from Avernus
4. Activate Ashnod's Altar by sacrificing Dualcaster Mage, adding
5. Resolve the copy of Ascend from Avernus, returning all creature and planeswalker cards with mana value three or less from your graveyard to the battlefield
6. Repeat from step 3

Results

• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers
• Infinite sacrifice triggers
• Infinite recursion of creature cards in your graveyard