How can you create a combo with Bolas's Citadel, Mortuary, Crookshank Kobolds, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Bolas's Citadel, Mortuary, Crookshank Kobolds, Phyrexian Altar

Color identity: BR
Mana cost: 
Steps:
  1. Cast Crookshank Kobolds either from your hand or from the top of your library by paying {0}.
  2. Activate Phyrexian Altar by sacrificing Crookshank Kobolds, adding one mana of any color.
  3. When Crookshank Kobolds dies, Mortuary triggers, putting Crookshank Kobolds from your graveyard on top of your library.
  4. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - 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:
  - Bolas's Citadel must be on the battlefield
  - Mortuary must be on the battlefield
  - Crookshank Kobolds must be in your hand or in the library
  - Phyrexian Altar must be on the battlefield
[END OF COMBO PREREQUISITES]
assistant