Storm of Souls + Phyrexian Altar + Dualcaster Mage

Prerequisites

• You have a creature card in your graveyard.

Steps

1. 1Cast Storm of Souls by paying its mana cost
2. 2Holding priority, cast Dualcaster Mage by paying its mana cost.
3. 3When Dualcaster Mage enters, it triggers, targeting Storm of Souls.
4. 4Holding priority, activate Phyrexian Altar by sacrificing Dualcaster Mage.
5. 5Resolve the Dualcaster Mage trigger, copying Storm of Souls
6. 6Resolve the Storm of Souls copy, returning Dualcaster Mage from your graveyard to the battlefield.
7. 7Repeat from step 3.

Effects

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