How can you create a combo with Dockside Extortionist, Mortuary, Grim Haruspex, Blasting Station?
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[START OF COMBO]This combo can be formed with Dockside Extortionist, Mortuary, Grim Haruspex, Blasting Station

Color identity: BR
Mana cost: {1}{R}
Steps:
  1. Activate Blasting Station by tapping and sacrificing Dockside Extortionist.
  2. Dockside Extortionist dies, triggering Mortuary and Grim Haruspex.
  3. Resolve the Mortuary trigger, putting Dockside Extortionist on top of your library.
  4. Resolve the Grim Haruspex trigger, drawing you a card.
  5. Resolve the Blasting Station's ability, dealing 1 damage to any target.
  6. Cast Dockside Extortionist by paying {1}{R}.
  7. Dockside Extortionist enters the battlefield, creating at least three Treasure tokens.
  8. Activate two Treasure tokens by tapping and sacrificing those, adding {1}{R}.
  9. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinite damage
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite Treasure tokens[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Opponents control at least three artifacts and/or enchantments.
[END OF COMBO PREREQUISITES]
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