Swift Warkite, Phantasmal Image, and Ashnod's Altar

Prerequisites

• Swift Warkite on the battlefield
• Phantasmal Image in hand
• Ashnod's Altar on the battlefield
• available

Steps

1. Cast Phantasmal Image by paying , choosing to have it enter the battlefield as a copy of Swift Warkite
2. When Phantasmal Image enters the battlefield, it triggers
3. Holding priority, activate Ashnod's Altar by sacrificing Phantasmal Image, adding
4. Resolve the Phantasmal Image trigger, returning Phantasmal Image from your graveyard to the battlefield as a copy of Swift Warkite
5. Repeat from step 2

Results

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