Éomer, Marshal of Rohan + Blade of Selves
Produces: Infinite combat phases, Infinite death triggers, Infinite ETB, Infinite LTB, Infinite mana creatures you control can produce, Infinite untap of creatures you control


- Color identity
- R
Prerequisites
Blade of Selves attached to Éomer. Éomer cannot be blocked and killed by an opponent. You have at least three opponents.
Steps
- Declare Éomer as an attacker.
- Éomer's myriad ability triggers, creating at least two token copies of it tapped and attacking each other opponent.
- Put all Éomer tokens into your graveyard due to the legend rule.
- When 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.
- Repeat each combat phase.
How to execute this combo
The "Éomer, Marshal of Rohan + Blade of Selves" combo takes 5 steps in order. Make sure you have the mana open and permanents listed in the prerequisites before you start — opponents can respond between steps.
The end result: Infinite combat phases, Infinite death triggers, Infinite ETB, Infinite LTB, Infinite mana creatures you control can produce, Infinite untap of creatures you control.
Practice the line offline: lay out the cards, walk through each step, and note where you can lose the combo (summoning sickness, lack of priority, removal on a key permanent). In game, announce each step clearly; in casual play you can offer to shortcut after demonstrating the loop.
The best window is a turn when opponents are tapped out or after they commit a spell — hold protection (a counter, Vexing Shusher) if the combo wins on the spot.