Grenzo, Dungeon Warden, Soldevi Digger, Sengir Autocrat, and Phyrexian Altar

Prerequisites

• Grenzo, Dungeon Warden on the battlefield
• Soldevi Digger on the battlefield
• Sengir Autocrat on the battlefield
• Phyrexian Altar on the battlefield
• available

Steps

1. Activate Phyrexian Altar by sacrificing Sengir Autocrat, adding
2. When Sengir Autocrat leaves the battlefield, its second ability triggers, exiling all Serf tokens
3. Activate Soldevi Digger by paying , putting Sengir Autocrat on the bottom of your library from your graveyard
4. Activate Grenzo by paying , putting Sengir Autocrat into your graveyard from the bottom of your library, and then putting it onto the battlefield
5. When Sengir Autocrat enters the battlefield, its first ability triggers, creating three 0/1 Serf creature tokens
6. Activate Phyrexian Altar three times by sacrificing the Serfs, adding
7. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers