Dualcaster Mage, Not Dead After All, and Phyrexian Altar

Prerequisites

• Dualcaster Mage in hand
• Not Dead After All in hand
• Phyrexian Altar on the battlefield
• available

Steps

1. Cost Not Dead After All by paying , targeting a creature you control
2. Holding priority, cast Dualcaster Mage by paying
3. When Dualcaster Mage enters the battlefield, it triggers, copying Not Dead After All, with the copy targeting Dualcaster Mage
4. Resolve the copy of Not Dead After All
5. Holding priority, activate Phyrexian Altar by sacrificing Dualcaster Mage, adding one mana of any color
6. When Dualcaster Mage dies, it triggers, returning itself from your graveyard to the battlefield with a Wicked Role token attached to it
7. When Dualcaster Mage enters the battlefield, it triggers, copying Not Dead After All, with the copy targeting Dualcaster Mage
8. Resolve the copy of Not Dead After All
9. Activate Phyrexian Altar by sacrificing Dualcaster Mage, adding one mana of any color
10. When Dualcaster Mage dies, it and the Wicked Role token attached to it trigger
11. Resolve the Wicked Role trigger, causing each opponent to lose 1 life
12. Resolve the Dualcaster Mage trigger, returning it from your graveyard to the battlefield with a Wicked Role token attached to it
13. Repeat from step 7

Results

• Infinite LTB
• Infinite ETB
• Infinite colored mana
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite lifeloss
• Infinite magecraft triggers