Hero of the Dunes, Faceless Butcher, and Bloodthrone Vampire

Prerequisites

• Hero of the Dunes on the battlefield
• Faceless Butcher in hand
• Bloodthrone Vampire on the battlefield
• available

Steps

1. Cast Faceless Butcher by paying its mana cost
2. When Faceless Butcher enters, its first ability triggers, exiling Hero of the Dunes
3. Activate Bloodthrone Vampire by sacrificing Faceless Butcher
4. When Faceless Butcher dies, its second ability triggers, returning Hero of the Dunes from exile to the battlefield
5. When Hero of the Dunes enters, it triggers, returning Faceless Butcher from your graveyard to the battlefield
6. When Faceless Butcher enters, its first ability triggers, exiling Hero of the Dunes
7. Resolve the Bloodthrone Vampire ability
8. Repeat from step 3

Results

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinitely large creature until end of turn