Ashnod's Altar + Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Highspire Artisan

WBG identity

Commander legal

The 3 combo pieces

• Ashnod's Altar
• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight
• Highspire Artisan

How to execute it

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

What the combo produces

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