Éomer, Marshal of Rohan + Kari Zev, Skyship Raider + Nim Deathmantle + Ashnod's Altar

Prerequisites

• Nim Deathmantle attached to Éomer.
• Kari Zev does not have summoning sickness and cannot be blocked and killed by an opponent.

Steps

1. 1Declare Kari Zev as an attacker.
2. 2Kari Zev triggers, creating a legendary 2/1 Ragavan creature token that is tapped and attacking.
3. 3Holding priority, activate Ashnod's Altar by sacrificing Ragavan, adding .
4. 4When Ragavan dies, Éomer triggers, untapping all creatures you control and causing you to get an additional combat phase after this one.
5. 5Activate Ashnod's Altar by sacrificing Éomer, adding .
6. 6When Éomer dies, Nim Deathmantle triggers, causing you to pay to return Éomer from your graveyard to the battlefield, and attach Nim Deathmantle to it.
7. 7Repeat each combat phase.

Effects

• Infinite combat phases
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers