Abhorrent Overlord, Deadeye Navigator, and Phyrexian Altar

Prerequisites

• Abhorrent Overlord on the battlefield
• Deadeye Navigator on the battlefield
• Phyrexian Altar on the battlefield
• Your devotion to black is at least three
• Deadeye Navigator is paired with Abhorrent Overlord
• available

Steps

1. Activate Abhorrent Overlord by paying , blinking itself
2. Abhorrent Overlord enters the battlefield, triggering itself and Deadeye Navigator's soulbond ability
3. Resolve the Abhorrent Overlord trigger, creating a number of 1/1 Harpy creature tokens equal to your devotion to black
4. Resolve the Deadeye Navigator trigger, repairing it and Abhorrent Overlord
5. Activate Phyrexian Altar twice by sacrificing two Harpys, adding
6. Repeat

Results

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