How can you create a combo with Thopter Foundry, Sword of the Meek, Grand Architect, Heartless Summoning?
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[START OF COMBO]This combo can be formed with Thopter Foundry, Sword of the Meek, Grand Architect, Heartless Summoning

Color identity: WUB
Mana cost: {1}
Steps:
  1. Activate Thopter Foundry by paying {1} and sacrificing Sword of the Meek, creating a 1/1 Thopter artifact creature token and causing you to gain one life.
  2. When the Thopter enters the battlefield, Sword of the Meek triggers, returning it from your graveyard to the battlefield attached to the Thopter.
  3. Activate Grand Architect's second ability by tapping the Thopter, adding {C}{C} that can only be spent to cast artifact spells or to activate abilities of artifacts.
  4. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite colorless mana that can only be spent to activate abilities of artifacts
  - Infinite colorless mana that can only be spent to cast artifact spells
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite lifegain
  - Infinite lifegain triggers
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
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