Summoning Station, Encroaching Mycosynth, and Phyrexian Altar

Prerequisites

• Summoning Station on the battlefield
• Encroaching Mycosynth 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, adding one mana of any color
3. The Pincher dies, triggering Summoning Station, untapping itself
4. Repeat

Results

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