How can you create a combo with Charnelhoard Wurm, Benefactor's Draught, Viridian Longbow?
user
[START OF COMBO]This combo can be formed with Charnelhoard Wurm, Benefactor's Draught, Viridian Longbow

Color identity: BRG
Mana cost: 
Steps:
  1. Activate all mana-producing creatures you control by tapping them, adding at least {1}{G}.
  2. Activate Charnelhoard Wurm by tapping it, dealing 1 damage to an opponent.
  3. Charnelhoard Wurm triggers, returning Benefactor's Draught to your hand from your graveyard.
  4. Cast Benefactor's Draught by paying {1}{G}, untapping all creatures you control and causing you to draw a card.
  5. Repeat.
  6. If creatures you control can tap to produce at least {2}{G}, this combo will net near-infinite mana.[END OF COMBO STEPS]

Result:
  - Infinite card draw
  - Infinite draw triggers
  - Near-infinite damage
  - Near-infinite magecraft triggers
  - Near-infinite mana creatures you control can produce
  - Near-infinite storm count
  - Near-infinite untap of creatures you control[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Charnelhoard Wurm must be on the battlefield
  - Benefactor's Draught must be in the graveyard
  - Viridian Longbow must be on the battlefield
  - Charnelhoard Wurm does not have summoning sickness.
  - Viridian Longbow attached to Charnelhoard Wurm.
  - Creatures you control can tap to produce at least {1}{G}.
[END OF COMBO PREREQUISITES]
assistant