How can you create a combo with Valley Floodcaller, Retraction Helix, Basalt Monolith?
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[START OF COMBO]This combo can be formed with Valley Floodcaller, Retraction Helix, Basalt Monolith

Color identity: U
Mana cost: {3}{U}
Steps:
  1. Cast Retraction Helix by paying {U}, targeting a Bird, Rat, Otter and/or Frog you control that does not have summoning sickness.
  2. Valley Floodcaller triggers, giving Birds, Otters, Frogs and Rats you control +1/+1 until end of turn and untapping them.
  3. Resolve Retraction Helix.
  4. Cast Basalt Monolith by paying its mana cost.
  5. Valley Floodcaller triggers, giving Birds, Otters, Frogs and Rats you control +1/+1 until end of turn and untapping them.
  6. Activate Basalt Monolith's first ability by tapping it, adding {C}{C}{C}.
  7. Activate the creature targeted by Retraction Helix by tapping it, returning Basalt Monolith from the battlefield to your hand.
  8. Repeat from step 4.[END OF COMBO STEPS]

Result:
  - Infinite storm count
  - Infinite untap of Birds, Otters, Rats and Frogs you control
  - Infinitely large Birds, Otters, Rats and Frogs you control until end of turn[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Valley Floodcaller must be on the battlefield
  - Retraction Helix must be in your hand
  - Basalt Monolith must be in your hand
  - You control a Bird, Rat, Otter and/or Frog that does not have summoning sickness.
[END OF COMBO PREREQUISITES]
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