Xathrid Necromancer, Xenograft, and Silvar, Devourer of the Free

Prerequisites

• Xathrid Necromancer on the battlefield
• Xenograft on the battlefield
• Silvar, Devourer of the Free on the battlefield

Steps

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

Results

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