Gravecrawler, Pitiless Plunderer, and Hammerhead, Maggia Boss

Prerequisites

• Gravecrawler in the graveyard
• Pitiless Plunderer on the battlefield
• Hammerhead, Maggia Boss on the battlefield

Steps

1. Activate Hammerhead by sacrificing Gravecrawler
2. When Gravecrawler dies, Pitiless Plunderer triggers, creating a Treasure token
3. Resolve the Hammerhead ability
4. Activate the Treasure token by tapping and sacrificing it, adding
5. Cast Gravecrawler from your graveyard by paying
6. Repeat

Results

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