Necrogen Communion + Phyrexian Altar + Sun Titan

WB identity

Commander legal

The 3 combo pieces

• Necrogen Communion
• Phyrexian Altar
• Sun Titan

How to execute it

1. Activate Phyrexian Altar by sacrificing Sun Titan.
2. When Sun Titan dies, Necrogen Communion triggers, returning Sun Titan from your graveyard to the battlefield.
3. When Sun Titan enters, it triggers, returning Necrogen Communion from your graveyard to the battlefield attached to Sun Titan.
4. Repeat.

What the combo produces

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