How can you create a combo with K'rrik, Son of Yawgmoth, Necromancer's Magemark, Glistening Oil, Death Cultist, Aetherflux Reservoir?
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[START OF COMBO]This combo can be formed with K'rrik, Son of Yawgmoth, Necromancer's Magemark, Glistening Oil, Death Cultist, Aetherflux Reservoir

Color identity: B
Mana cost: 
Steps:
  1. Activate Death Cultist by sacrificing it, returning it from the battlefield to your hand due to Necromancer Magemark's replacement effect.
  2. Put Glistening Oil into your graveyard, triggering itself, returning it from your graveyard to your hand.
  3. Resolve Death Cultist's ability, causing target player to lose 1 life and you to gain 1 life.
  4. Cast Death Cultist by paying {B/P}.
  5. Aetherflux Reservoir and K'rrik each trigger.
  6. Resolve K'rrik's trigger, putting a +1/+1 counter on it.
  7. Resolve Aetherflux Reservoir's trigger, gaining 1 life for each spell you've cast this turn.
  8. Cast Glistening Oil targeting Death Cultist by paying {B/P}{B/P}.
  9. Aetherflux Reservoir and K'rrik each trigger.
  10. Resolve K'rrik's trigger, putting a +1/+1 counter on it.
  11. Resolve Aetherflux Reservoir's trigger, gaining 1 life for each spell you've cast this turn.
  12. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - All permanants must be on the battlefield
  - Glistening Oil attached to Death Cultist.
  - Necromancer's Magemark attached to any other creature.
  - You have at least 5 life.
[END OF COMBO PREREQUISITES]
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