How can you create a combo with Devoted Druid, Captain Rex Nebula?
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[START OF COMBO]This combo can be formed with Devoted Druid, Captain Rex Nebula

Color identity: RGW
Mana cost: 
Steps:
  1. At the beginning of combat, Captain Rex Nebula triggers, making Devoted Druid a Vehicle until end of turn.
  2. Activate Devoted Druid's first activated ability by tapping it, adding {G}.
  3. Activate Devoted Druid's second activated ability by putting a -1/-1 counter on it, untapping it.
  4. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite green mana[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
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