How can you create a combo with Propagator Drone, Earthcraft, Training Grounds?
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[START OF COMBO]This combo can be formed with Propagator Drone, Earthcraft, Training Grounds

Color identity: GU
Mana cost: {1}
Steps:
  1. Activate a basic Forest by tapping it, adding {G}.
  2. Activate Propagator Drone by paying {1}{G}, creating a 0/1 Eldrazi Spawn creature token.
  3. Activate Earthcraft by tapping the Eldrazi Spawn, untapping the basic Forest.
  4. Activate the Eldrazi Spawn by sacrificing it, adding {C}.
  5. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You control at least one basic Forest.
[END OF COMBO PREREQUISITES]
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