Reincarnation, Dualcaster Mage, and Ashnod's Altar

Prerequisites

• Reincarnation in hand
• Dualcaster Mage in hand
• Ashnod's Altar on the battlefield
• available

Steps

1. Cast Reincarnation by paying , targeting any creature
2. Holding priority, cast Dualcaster Mage by paying
3. Dualcaster Mage enters the battlefield, copying Reincarnation, targeting Dualcaster Mage
4. Resolve the copy of Reincarnation
5. Activate Ashnod's Altar by sacrificing Dualcaster Mage, adding
6. Dualcaster Mage dies, triggering Reincarnation, returning Dualcaster Mage from your graveyard to the battlefield
7. Repeat from step 3

Results

• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers
• Infinite sacrifice triggers