Saffi Eriksdotter + Extraction Specialist + Phyrexian Altar

Prerequisites

—

Steps

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

Effects

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