Gravecrawler, Pitiless Plunderer, and Engineered Plague

Prerequisites

• Gravecrawler in the graveyard
• Pitiless Plunderer on the battlefield
• Engineered Plague on the battlefield
• You control at least one additional Zombie
• "Zombie" chosen with Engineered Plague
• available

Steps

1. Cast Gravecrawler from your graveyard by paying
2. Gravecrawler enters the battlefield as a 1/0 due to Engineered Plague, and dies as a state-based action due to having zero toughness
3. Pitiless Plunderer triggers, creating a Treasure token
4. Activate the Treasure by tapping and sacrificing it, adding
5. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite storm count