Magnanimous Magistrate + Felidar Guardian + Phyrexian Altar

Prerequisites

• At least four reprieve counters on Magnanimous Magistrate.

Steps

1. 1Activate Phyrexian Altar by sacrificing Felidar Guardian, adding .
2. 2Magnanimous Magistrate triggers, allowing you to remove four reprieve counters from it and return Felidar Guardian from the graveyard to the battlefield.
3. 3Felidar Guardian enters the battlefield, blinking Magnanimous Magistrate.
4. 4Repeat.

Effects

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