Ashnod's Altar + Dualcaster Mage + Supernatural Stamina

Prerequisites

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Steps

1. 1Cast Supernatural Stamina by paying its mana cost.
2. 2Holding priority, cast Dualcaster Mage by paying its mana cost.
3. 3When Dualcaster Mage enters, it triggers, copying Supernatural Stamina, with the copy targeting Dualcaster Mage.
4. 4Resolve the copy of Supernatural Stamina.
5. 5Holding priority, activate Ashnod's Altar by sacrificing Dualcaster Mage.
6. 6When Dualcaster Mage dies, it triggers, returning it 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