Mikaeus, the Unhallowed, Woodfall Primus, and Bartolomé del Presidio

Prerequisites

• Mikaeus, the Unhallowed on the battlefield
• Woodfall Primus on the battlefield
• Bartolomé del Presidio on the battlefield

Steps

1. Activate Bartolomé del Presidio by sacrificing Woodfall Primus
2. When Woodfall Primus dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it
3. When Woodfall Primus enters, it triggers, destroying a noncreature permanent
4. Resolve the Bartolomé del Presidio ability
5. Activate Bartolomé del Presidio by sacrificing Woodfall Primus
6. When Woodfall Primus dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it
7. When Woodfall Primus enters, it triggers, destroying a noncreature permanent
8. Resolve the Bartolomé del Presidio ability
9. Repeat

Results

• Destroy any number of noncreature permanents
• Infinite +1/+1 counters on a creature
• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers
• Lock