How can you create a combo with Derevi, Empyrial Tactician, Emiel the Blessed, Incubation Druid?
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[START OF COMBO]This combo can be formed with Derevi, Empyrial Tactician, Emiel the Blessed, Incubation Druid

Color identity: GWU
Mana cost: 
Steps:
  1. Activate Incubation Druid by tapping it, adding {3}.
  2. Activate Emiel by paying {3}, blinking Derevi.
  3. When Derevi enters the battlefield, it triggers, untapping Incubation Druid.
  4. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - All permanants must be on the battlefield
  - Incubation Druid does not have summoning sickness, and has at least one +1/+1 counter on it. You control a mana-producing land.
[END OF COMBO PREREQUISITES]
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