Color Identity: B

Initial Card State
- All permanents on the battlefield.
Notable Prerequisites
- You control another nontoken creature.
Steps
- Activate Ashnod's Altar by sacrificing another creature, adding ({C} magic symbol)
({C} magic symbol)
. - The creature dies, triggering Ogre Slumlord and Nim Deathmantle.
- Resolve the Ogre Slumlord trigger, creating a 1/1 Rat creature token.
- Activate Ashnod's Altar by sacrificing the Rat, adding ({C} magic symbol)
({C} magic symbol)
. - Resolve the Nim Deathmantle trigger from step 2, causing you to pay ({4} magic symbol)
to return the creature from your graveyard to the battlefield, and attach Nim Deathmantle to it. - Repeat.
Results
- Infinite LTB.
- Infinite sacrifice triggers.
- Infinite death triggers.
- Infinite ETB.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).