Grenzo, Dungeon Warden, Epitaph Golem, Sengir Autocrat, and Ashnod's Altar

Prerequisites

• Grenzo, Dungeon Warden on the battlefield
• Epitaph Golem on the battlefield
• Sengir Autocrat on the battlefield
• Ashnod's Altar on the battlefield
• available

Steps

1. Activate Ashnod's Altar by sacrificing Sengir Autocrat, adding
2. When Sengir Autocrat leaves the battlefield, its second ability triggers, exiling all Serf tokens
3. Activate Epitaph Golem 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 Ashnod's Altar three times by sacrificing the Serfs, adding six
7. Repeat

Results

• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers