Grazing Kelpie + Mikaeus, the Unhallowed + Umbral Collar Zealot

BGU identity

Commander legal

The 3 combo pieces

• Grazing Kelpie
• Mikaeus, the Unhallowed
• Umbral Collar Zealot

How to execute it

1. Activate Umbral Collar Zealot 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 Umbral Collar Zealot ability.
4. Activate Umbral Collar Zealot 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 Umbral Collar Zealot ability.
7. Repeat.

What the combo produces

• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers
• Infinite surveil