Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Arcbound Ravager + Arcbound Tracker
Produces: Infinite artifact ETB, Infinite artifact LTB, Infinite artifact sacrifice triggers, Infinite creature LTB, Infinite creature ETB, Infinite creature sacrifice triggers, Infinite death triggers, Infinite +1/+1 counters on a creature, Infinite +1/+1 counters on certain creatures, Draw the game
- Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight
- Arcbound Ravager
- Arcbound Tracker
- Color identity
- RWB
Steps
- Activate Arcbound Ravager by sacrificing Arcbound Tracker.
- When Arcbound Tracker dies, its modular ability and persist ability trigger.
- Resolve the modular trigger, putting Arcbound Tracker's +1/+1 counters on another artifact creature.
- Resolve the persist trigger, returning Arcbound Tracker from your graveyard to the battlefield. It will not have a -1/-1 counter on it due to its modular ability.
- Resolve the Arcbound Ravager ability.
- Repeat.
How to execute this combo
The "Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Arcbound Ravager + Arcbound Tracker" combo takes 6 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 artifact ETB, Infinite artifact LTB, Infinite artifact sacrifice triggers, Infinite creature LTB, Infinite creature ETB, Infinite creature sacrifice triggers, Infinite death triggers, Infinite +1/+1 counters on a creature, Infinite +1/+1 counters on certain creatures, Draw the game.
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.