How can you create a combo with Malcolm, Keen-Eyed Navigator, Reckless Fireweaver, Amoeboid Changeling?
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[START OF COMBO]This combo can be formed with Malcolm, Keen-Eyed Navigator, Reckless Fireweaver, Amoeboid Changeling

Color identity: UR
Mana cost: 
Steps:
  1. Activate Amoeboid Changeling by tapping, targeting Reckless Fireweaver.
  2. Cause an artifact to enter the battlefield under your control.
  3. Reckless Fireweaver triggers, dealing 1 damage to each opponent.
  4. Malcolm triggers, creating a Treasure token for each opponent dealt damage this way.
  5. The Treasures enter the battlefield, triggering Reckless Fireweaver that many times.
  6. Resolve the first Reckless Fireweaver trigger, dealing 1 damage to each opponent.
  7. Repeat from step 4.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinite damage
  - Infinite Treasure tokens[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Amoeboid Changeling does not have summoning sickness.
  - You have a way to cause an artifact to enter the battlefield under your control.
[END OF COMBO PREREQUISITES]
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