Summoning Station, Pitiless Plunderer, and Phyrexian Altar

Prerequisites

• Summoning Station on the battlefield
• Pitiless Plunderer on the battlefield
• Phyrexian Altar on the battlefield

Steps

1. Activate Summoning Station by tapping it, creating a 2/2 Pincher creature token
2. Activate Phyrexian Altar by sacrificing the Pincher
3. When the Pincher dies, Pitiless Plunderer triggers, creating a Treasure token
4. Activate the Treasure by tapping and sacrificing it, adding one mana of any color
5. Summoning Station triggers, untapping it
6. Repeat

Results

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