Phyrexian Altar + Saffi Eriksdotter + Sun Titan

GW identity

Commander legal

The 3 combo pieces

• Phyrexian Altar
• Saffi Eriksdotter
• Sun Titan

How to execute it

1. Activate Saffi by sacrificing it, targeting Sun Titan.
2. Activate Phyrexian Altar by sacrificing Sun Titan, adding one mana of any color.
3. When Sun Titan dies, Saffi triggers, returning Sun Titan from your graveyard to the battlefield.
4. When Sun Titan enters the battlefield, it triggers, returning Saffi from your graveyard to the battlefield.
5. Repeat.

What the combo produces

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