How can you create a combo with Derevi, Empyrial Tactician, Displacer Kitten, Retraction Helix?
user
[START OF COMBO]This combo can be formed with Derevi, Empyrial Tactician, Displacer Kitten, Retraction Helix

Color identity: GWU
Mana cost: {U}
Steps:
  1. Cast Retraction Helix by paying {U}, targeting any creature you control except Derevi that does not have summoning sickness.
  2. Displacer Kitten triggers, blinking Derevi.
  3. When Derevi enters the battlefield, it triggers, untapping the creature targeted in step 1.
  4. Resolve Retraction Helix.
  5. Cast the permanent from your hand by paying {0}.
  6. Displacer Kitten triggers, blinking Derevi.
  7. When Derevi enters the battlefield, it triggers, untapping the creature targeted by Retraction Helix.
  8. Resolve the permanent spell.
  9. Activate the creature targeted by Retraction Helix by tapping it, returning the permanent cast in step 5 from the battlefield to your hand.
  10. Repeat from step 5.[END OF COMBO STEPS]

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

Other prerequisites:
  - Derevi, Empyrial Tactician must be on the battlefield
  - Displacer Kitten must be on the battlefield
  - Retraction Helix must be in your hand
  - You control a creature other than Derevi that does not have summoning sickness.
[END OF COMBO PREREQUISITES]
assistant