How can you create a combo with K'rrik, Son of Yawgmoth, Pontiff of Blight, Gravecrawler, Altar of Dementia?
user
[START OF COMBO]This combo can be formed with K'rrik, Son of Yawgmoth, Pontiff of Blight, Gravecrawler, Altar of Dementia

Color identity: B
Mana cost: {W/B/P}{B/P}
Steps:
  1. Activate Altar of Dementia by sacrificing Gravecrawler, causing target player to mill cards equal to its power.
  2. Cast Gravecrawler from your graveyard by paying {B} or 2 life due to K'rrik.
  3. K'rrik triggers, as well as each creature you control's extort ability.
  4. Resolve the first K'rrik trigger, putting a +1/+1 counter on it.
  5. Resolve the first extort trigger, causing you to pay {W/B} or 2 life due to K'rrik, causing each opponent to lose 1 life and you to gain that much life.
  6. Repeat step 5 for each remaining trigger.
  7. Repeat from step 1.[END OF COMBO STEPS]

Result:
  - Infinite +1/+1 counters on K'rrik
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite lifegain
  - Infinite lifegain triggers
  - Infinite lifeloss
  - Infinite leaves the battlefield
  - Infinite mill
  - Infinite sacrifice triggers
  - Infinite self-mill
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You have at least three opponents.
[END OF COMBO PREREQUISITES]
assistant