How can you create a combo with Experiment Kraj, Krosan Restorer, Horseshoe Crab?
user
[START OF COMBO]This combo can be formed with Experiment Kraj, Krosan Restorer, Horseshoe Crab

Color identity: GU
Mana cost: {U}{U}
Steps:
  1. Activate Experiment Kraj's own ability by tapping it, putting a +1/+1 counter on Horseshoe Crab.
  2. Activate Experiment Kraj using Horseshoe Crab's ability by paying {U}, untapping it.
  3. Activate Experiment Kraj's own ability by tapping it, putting a +1/+1 counter on Krosan Restorer.
  4. Activate Experiment Kraj using Horseshoe Crab's ability by paying {U}, untapping it.
  5. Activate Experiment Kraj using Krosan Restorer's ability by tapping it, untapping up to three lands you control.
  6. Activate those lands by tapping them, adding at least {1}{U}{U}.
  7. Repeat.
  8. Once you have infinite mana, you may activate Experiment Kraj's own ability any number of times, and potentially activate Experiment Kraj any number of times copying abilities of other creatures you have placed +1/+1 counters onto.[END OF COMBO STEPS]

Result:
  - Infinite +1/+1 counters on creatures you control
  - Infinite mana lands you control can produce[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Experiment Kraj does not have summoning sickness.
  - You control up to three lands that can produce a total of at least {1}{U}{U}.
  - You have at least seven cards in your graveyard.
[END OF COMBO PREREQUISITES]
assistant