Phyrexian Altar + Dualcaster Mage + Pain 101

Prerequisites

• There is a valid target for Pain 101 on the battlefield.

Steps

1. 1Cast Pain 101 by paying its mana cost.
2. 2Holding priority, cast Dualcaster Mage by paying its mana cost.
3. 3When Dualcaster Mage enters, it triggers, copying Pain 101, with the copy targeting Dualcaster Mage.
4. 4Resolve the copy of Pain 101.
5. 5Holding priority, activate Phyrexian 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 colored mana
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite magecraft triggers