Xathrid Necromancer, Maskwood Nexus, and Bartolomé del Presidio

Prerequisites

• Xathrid Necromancer on the battlefield
• Maskwood Nexus on the battlefield
• Bartolomé del Presidio on the battlefield

Steps

1. Activate Bartolomé del Presidio by sacrificing any other creature
2. When the creature dies as a Human due to Maskwood Nexus, Xathrid Necromancer triggers, creating a 2/2 Zombie creature token
3. Resolve the Bartolomé del Presidio ability
4. Repeat

Results

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