How can you create a combo with Volrath, the Shapestealer, Devoted Druid, Battlefield Scrounger, Mesmeric Orb?
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[START OF COMBO]This combo can be formed with Volrath, the Shapestealer, Devoted Druid, Battlefield Scrounger, Mesmeric Orb

Color identity: BGU
Mana cost: {1}
Steps:
  1. Activate Volrath by paying {1}, causing it to become a copy of Devoted Druid until your next turn.
  2. Activate Volrath by tapping it, adding {G}.
  3. Activate Volrath by putting a -1/-1 counter on it, untapping it.
  4. Mesmeric Orb triggers, causing you to mill a card.
  5. Repeat from step 2 two additional times.
  6. Activate Volrath by paying {1}, causing it to become a copy of Battlefield Scrounger until your next turn.
  7. Activate Volrath by putting three cards from your graveyard on the bottom of your library, causing it to get +3/+3 until end of turn.
  8. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite green mana[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Volrath does not have summoning sickness.Battlefield Scrounger each have at least one counter on them.
  - You have at least four cards in your graveyard.
[END OF COMBO PREREQUISITES]
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