Magnanimous Magistrate + Deepglow Skate + Ashnod's Altar

Prerequisites

• Magnanimous Magistrate has at least five reprieve counters.

Steps

1. 1Cast Deepglow Skate by paying .
2. 2Deepglow Skate enters the battlefield, doubling the number of reprieve counters on Magnanimous Magistrate.
3. 3Activate Ashnod's Altar by sacrificing Deepglow Skate, adding .
4. 4Deepglow Skate dies, triggering Magnanimous Magistrate, causing you to remove five reprieve counters from Magnanimous Magistrate and return Deepglow Skate from your graveyard to the battlefield.
5. 5Repeat from step 2.

Effects

• Infinite colorless mana
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite proliferate