Shilgengar, Sire of Famine, Footsteps of the Goryo, and Dualcaster Mage

Prerequisites

• Shilgengar, Sire of Famine on the battlefield
• Footsteps of the Goryo in hand
• Dualcaster Mage in hand
• available

Steps

1. Cast Footsteps of the Goryo by paying its mana cost
2. Holding priority, cast Dualcaster Mage by paying its mana cost
3. When Dualcaster Mage enters, it triggers, targeting Footsteps of the Goryo
4. Holding priority, activate Shilgengar by sacrificing Dualcaster Mage, creating a Blood token
5. Resolve the Dualcaster Mage trigger, copying Footsteps of the Goryo Resolve the Footsteps of the Goryo copy, returning Dualcaster Mage from your graveyard to the battlefield
6. Repeat from step 3

Results

• Infinite Blood tokens
• Infinite artifact tokens
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite magecraft triggers