How can you create a combo with Dockside Extortionist, Chain of Vapor, Lore Drakkis?
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[START OF COMBO]This combo can be formed with Dockside Extortionist, Chain of Vapor, Lore Drakkis

Color identity: UR
Mana cost: {1}{R}
Steps:
  1. Cast Dockside Extortionist by paying {1}{R}.
  2. Dockside Extortionist enters the battlefield, creating at least six Treasure tokens.
  3. Activate five Treasure tokens by tapping and sacrificing them, adding {1}{U/R}{U/R}{U}{R}.
  4. Cast Lore Drakkis for its mutate cost by paying {U/R}{U/R}, mutating it on top of Dockside Extortionist.
  5. Lore Drakkis triggers, returning Chain of Vapor from your graveyard to your hand.
  6. Cast Chain of Vapor by paying {U}, returning Lore Drakkis and Dockside Extortionist to your hand and choosing not to copy Chain of Vapor.
  7. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite magecraft triggers
  - Infinite storm count
  - Infinite Treasure tokens[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Dockside Extortionist must be in your hand
  - Chain of Vapor must be in the graveyard
  - Lore Drakkis must be in your hand
  - Opponents control at least six artifacts and/or enchantments.
[END OF COMBO PREREQUISITES]
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