How it works
Prerequisites
- Your devotion to black is at least five.
Steps
- 1Cast Abhorrent Overlord by paying .
- 2When Abhorrent Overlord enters the battlefield, it and Cloudstone Curio trigger.
- 3Resolve the Cloudstone Curio trigger, choosing to return nothing to your hand from the battlefield.
- 4Resolve the Abhorrent Overlord trigger, creating a number of 1/1 Harpy creature tokens equal to your devotion to black.
- 5When the Harpys enter the battlefield, Cloudstone Curio triggers that many times.
- 6Resolve the first Cloudstone Curio trigger, returning Abhorrent Overlord to your hand from the battlefield.
- 7Resolve all remaining Cloudstone Curio triggers, choosing to return nothing to your hand from the battlefield.
- 8Activate Phyrexian Altar seven times by sacrificing seven Harpys, adding .
- 9Repeat.
- 10If your devotion to black excluding Abhorrent Overlord is at least six, this combo will net infinite colored mana.
Commander brackets
In which brackets is this combo allowed, per Spellbook's Exhibition tier?