Ashnod's Altar + Thran Vigil + Twilight Shepherd

WB identity

Commander legal

The 3 combo pieces

• Ashnod's Altar
• Thran Vigil
• Twilight Shepherd

How to execute it

1. Activate Ashnod's Altar by sacrificing Twilight Shepherd.
2. When Twilight Shepherd 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 Twilight Shepherd.
4. Repeat.

What the combo produces

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