Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + X-23, Deadly Weapon + Yahenni, Undying Partisan

WBG identity

Commander legal

The 3 combo pieces

• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight
• X-23, Deadly Weapon
• Yahenni, Undying Partisan

How to execute it

1. Activate Yahenni by sacrificing the other Mutant.
2. When the Mutant dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. When the Mutant enters, X-23 triggers, putting a +1/+1 counter on X-23 and the other Mutant.
4. Resolve the Yahenni ability.
5. Repeat.

What the combo produces

• Infinite +1/+1 counters on a creature
• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers