Carrion Feeder + Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Evernight Shade

WB identity

Commander legal

The 3 combo pieces

• Carrion Feeder
• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight
• Evernight Shade

How to execute it

1. Activate Carrion Feeder by sacrificing Evernight Shade
2. When Evernight Shade dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
3. Resolve the Carrion Feeder ability.
4. Activate Carrion Feeder by sacrificing Evernight Shade
5. When Evernight Shade dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
6. Evernight Shade enters and dies as a state-based action due to having 0 toughness. Its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
7. Resolve the Carrion Feeder ability from step 4.
8. Repeat from step 4.

What the combo produces

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