Bartolomé del Presidio + Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Gleeful Arsonist

RWB identity

Commander legal

The 3 combo pieces

• Bartolomé del Presidio
• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight
• Gleeful Arsonist

How to execute it

1. Activate Bartolomé del Presidio by sacrificing Gleeful Arsonist
2. When Gleeful Arsonist dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
3. Activate Bartolomé del Presidio by sacrificing Gleeful Arsonist
4. When Gleeful Arsonist dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
5. Resolve both Bartolomé del Presidio abilities from step 1 and 3.
6. Repeat.

What the combo produces

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