Bartolomé del Presidio + Grazing Kelpie + Mikaeus, the Unhallowed

GWUB identity

Commander legal

The 3 combo pieces

• Bartolomé del Presidio
• Grazing Kelpie
• Mikaeus, the Unhallowed

How to execute it

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

What the combo produces

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