Skirk Fire Marshal, Blessed Sanctuary, and Grafted Exoskeleton

Prerequisites

• Skirk Fire Marshal on the battlefield
• Blessed Sanctuary on the battlefield
• Grafted Exoskeleton on the battlefield
• Grafted Exoskeleton attached to Skirk Fire Marshal
• You control at least five untapped Goblins

Steps

1. Activate Skirk Fire Marshal by tapping five untapped Goblins, giving each opposing creature ten -1/-1 counters and giving each opponent ten poison counters
2. Each opponent loses the game as a state-based action due to having ten poison counters

Results

• Each opponent loses the game