Ashnod's Altar + Gravelgill Axeshark + Stalwart Successor

BGU identity

Commander legal

The 3 combo pieces

• Ashnod's Altar
• Gravelgill Axeshark
• Stalwart Successor

How to execute it

1. Activate Ashnod's Altar by sacrificing Gravelgill Axeshark
2. When Gravelgill Axeshark dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. When Gravelgill Axeshark enters, Stalwart Successor triggers, putting a +1/+1 counter on Gravelgill Axeshark
4. Repeat.

What the combo produces

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