How can you create a combo with Wall of Blood, Phyrexian Unlife, Repay in Kind?
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[START OF COMBO]This combo can be formed with Wall of Blood, Phyrexian Unlife, Repay in Kind

Color identity: WB
Mana cost: {5}{B}{B}
Steps:
  1. Activate Wall of Blood's ability by paying 1 life, giving Wall of Blood +1/+1 until end of turn.
  2. Repeat until your life total is at zero.
  3. Cast Repay in Kind by paying {5}{B}{B}, causing each player's life total to become equal to the lowest life total among all players.[END OF COMBO STEPS]

Result:
  - Infinite lifeloss[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Wall of Blood must be on the battlefield
  - Phyrexian Unlife must be on the battlefield
  - Repay in Kind must be in your hand
[END OF COMBO PREREQUISITES]
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