Mikaeus, the Unhallowed + Umbral Collar Zealot + Putrid Goblin

Prerequisites

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Steps

1. 1Activate Umbral Collar Zealot by sacrificing Putrid Goblin.
2. 2When Putrid Goblin dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. 3Resolve the Umbral Collar Zealot ability.
4. 4Activate Umbral Collar Zealot by sacrificing Putrid Goblin.
5. 5When Putrid Goblin dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
6. 6Resolve the Umbral Collar Zealot ability.
7. 7Repeat.

Effects

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