How can you create a combo with Urza, Lord High Artificer, Thopter Foundry, Sword of the Meek?
user
[START OF COMBO]This combo can be formed with Urza, Lord High Artificer, Thopter Foundry, Sword of the Meek

Color identity: WUB
Mana cost: 
Steps:
  1. Activate Urza's first ability by tapping Sword of the Meek, adding {U}.
  2. Activate Thopter Foundry by paying {1} and sacrificing Sword of the Meek, creating a 1/1 Thopter creature token with flying and causing you to gain 1 life.
  3. The Thopter enters the battlefield, triggering Sword of the Meek, causing you to return Sword of the Meek from your graveyard to the battlefield attached to the Thopter.
  4. Repeat.
  5. Once you have an infinite amount of Thopter tokens, you may tap them using Urza's first ability to get infinite {U}, and then use the mana to activate Urza's second ability infinite times.[END OF COMBO STEPS]

Result:
  - Cast all cards in your library without paying their mana costs
  - Infinite blue mana
  - Infinite creature tokens
  - Infinite enters the battlefield
  - Infinite lifegain
  - Infinite lifegain triggers[END OF COMBO RESULT][END OF COMBO]

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