How can you create a combo with Steelfin Whale, Retraction Helix, Memnite?
user
[START OF COMBO]This combo can be formed with Steelfin Whale, Retraction Helix, Memnite

Color identity: U
Mana cost: {U}
Steps:
  1. Cast Retraction Helix by paying {U}, targeting Steelfin Whale.
  2. Activate Steelfin Whale by tapping it, returning Memnite from the battlefield to your hand.
  3. Cast Memnite by paying {0}.
  4. When Memnite enters the battlefield, Steelfin Whale triggers, untapping Steelfin Whale.
  5. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Steelfin Whale must be on the battlefield
  - Retraction Helix must be in your hand
  - Memnite must be on the battlefield
  - Steelfin Whale does not have summoning sickness.
[END OF COMBO PREREQUISITES]
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