How can you create a combo with Headless Rider, Nim Deathmantle, Ashnod's Altar?
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[START OF COMBO]This combo can be formed with Headless Rider, Nim Deathmantle, Ashnod's Altar

Color identity: B
Mana cost: 
Steps:
  1. Activate Ashnod's Altar by sacrificing Headless Rider, adding {C}{C}.
  2. Headless Rider and Nim Deathmantle trigger.
  3. Resolve the Headless Rider trigger, creating a 2/2 Zombie creature token.
  4. Activate Ashnod's Altar by sacrificing the Zombie token, adding {C}{C}.
  5. Resolve the Nim Deathmantle trigger, paying {4} to return Headless Rider to the battlefield, and attach Nim Deathmantle to it.
  6. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
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