Éomer, Marshal of Rohan + Legion Loyalty

Prerequisites

• Éomer cannot be blocked and killed by an opponent.
• You have at least three opponents.

Steps

1. 1Declare Éomer as an attacker.
2. 2Éomer's myriad ability triggers, creating at least two token copies of it tapped and attacking each other opponent.
3. 3Put all Éomer tokens into your graveyard due to the legend rule.
4. 4When the Éomer token(s) die, each Éomer token triggers, untapping all creatures you control and causing you to get an additional combat phase after this one.
5. 5Repeat each combat phase.

Effects

• Infinite combat phases
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite mana creatures you control can produce
• Infinite untap of creatures you control