How can you create a combo with Bloodline Necromancer, Night of Souls' Betrayal, Kaervek, the Spiteful?
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[START OF COMBO]This combo can be formed with Bloodline Necromancer, Night of Souls' Betrayal, Kaervek, the Spiteful

Color identity: B
Mana cost: {4}{B}
Steps:
  1. Cast Bloodline Necromancer by paying {4}{B}.
  2. Bloodline Necromancer enters the battlefield and dies as a state-based action due to having zero or less toughness.
  3. Bloodline Necromancer enters the battlefield, returning itself from your graveyard to the battlefield.
  4. Repeat from step 2.[END OF COMBO STEPS]

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

Other prerequisites:
  - Bloodline Necromancer must be in your hand
  - Night of Souls' Betrayal must be on the battlefield
  - Kaervek, the Spiteful must be on the battlefield
[END OF COMBO PREREQUISITES]
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