Athreos, Shroud-Veiled + Phyrexian Altar + Skullbriar, the Walking Grave

WBG identity

Commander legal

The 3 combo pieces

• Athreos, Shroud-Veiled
• Phyrexian Altar
• Skullbriar, the Walking Grave

How to execute it

1. Move to your end step.
2. Athreos triggers, placing a coin counter on Skullbriar.
3. Sacrifice Skullbriar to Phyrexian Altar to add one mana of any color.
4. Athreos triggers, returning Skullbriar to the battlefield.
5. Repeat.

What the combo produces

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