How can you create a combo with Ob Nixilis, Captive Kingpin, Mortuary, Footlight Fiend, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Ob Nixilis, Captive Kingpin, Mortuary, Footlight Fiend, Phyrexian Altar

Color identity: BR
Mana cost: 
Steps:
  1. Activate Phyrexian Altar by sacrificing Footlight Fiend, adding {B/R}.
  2. When Footlight Fiend dies, it and Mortuary trigger.
  3. Resolve the Mortuary trigger, putting Footlight Fiend on top of your library from your graveyard.
  4. Resolve the Footlight Fiend trigger, dealing 1 damage to an opponent.
  5. Ob Nixilis triggers, putting a +1/+1 counter on itself, and exiling Footlight Fiend from the top of your library with the ability to play it until your end step.
  6. Cast Footlight Fiend from exile by paying {B/R}.
  7. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite +1/+1 counters on Ob Nixilis
  - Infinite damage
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

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