Gravecrawler, Ashnod's Altar, and Gemstone Array

Prerequisites

• Gravecrawler on the battlefield
• Ashnod's Altar on the battlefield
• Gemstone Array on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing Gravecrawler, adding
2. Activate Gemstone Array's first ability by paying , putting a charge counter on it
3. Activate Gemstone Array's second ability by removing a charge counter from it, adding
4. Cast Gravecrawler from your graveyard by paying
5. Repeat

Results

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