How can you create a combo with Dockside Extortionist, Revel in Riches?
user
[START OF COMBO]This combo can be formed with Dockside Extortionist, Revel in Riches

Color identity: BR
Mana cost: {1}{R}
Steps:
  1. Cast Dockside Extortionist by paying {1}{R}.
  2. Dockside Extortionist enters the battlefield, creating at least ten Treasure tokens.
  3. At the beginning of your next upkeep, Revel in Riches' second ability triggers, causing you to win the game.[END OF COMBO STEPS]

Result:
  - Win the game at the beginning of your next upkeep[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Dockside Extortionist must be in your hand
  - Revel in Riches must be on the battlefield
  - Opponents control at least ten artifacts and/or enchantments.
[END OF COMBO PREREQUISITES]
assistant