Ashnod's Altar + Safehold Elite + Thran Vigil

WBG identity

Commander legal

The 3 combo pieces

• Ashnod's Altar
• Safehold Elite
• Thran Vigil

How to execute it

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

What the combo produces

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