Phyrexian Altar + Uncivil Unrest

R identity

Commander legal

The 2 combo pieces

• Phyrexian Altar
• Uncivil Unrest

How to execute it

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

What the combo produces

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