How can you create a combo with Undercity Scrounger, Pemmin's Aura, Primal Vigor?
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[START OF COMBO]This combo can be formed with Undercity Scrounger, Pemmin's Aura, Primal Vigor

Color identity: BGU
Mana cost: 
Steps:
  1. Activate Undercity Scrounger by tapping it, creating two Treasure tokens.
  2. Activate a Treasure token by tapping and sacrificing it, adding {U}.
  3. Activate Pemmin's Aura's first ability by paying {U}, untapping Undercity Scrounger.
  4. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinite Treasure tokens[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Pemmin's Aura attached to Undercity Scrounger.
  - Undercity Scrounger does not have summoning sickness.
  - A creature has died this turn.
[END OF COMBO PREREQUISITES]
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