Ambitious Dragonborn + Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Phyrexian Altar

WBG identity

Commander legal

The 3 combo pieces

• Ambitious Dragonborn
• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight
• Phyrexian Altar

How to execute it

1. Activate Phyrexian Altar by sacrificing Ambitious Dragonborn.
2. When Ambitious Dragonborn dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to its replacement effect.
3. Repeat.

What the combo produces

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