Grenzo, Dungeon Warden, Epitaph Golem, Su-Chi Cave Guard, and Ashnod's Altar

Prerequisites

• Grenzo, Dungeon Warden on the battlefield
• Epitaph Golem on the battlefield
• Su-Chi Cave Guard on the battlefield
• Ashnod's Altar on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing Su-Chi Cave Guard, adding
2. When Su-Chi Cave Guard dies, it triggers, adding eight
3. Activate Epitaph Golem by paying , putting Su-Chi Cave Guard on the bottom of your library from your graveyard
4. Activate Grenzo by paying , putting Su-Chi Cave Guard into your graveyard from the bottom of your library, and then putting it onto the battlefield
5. Repeat

Results

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