Invasion Submersible (Avatar: The Last Airbender)

Artifact Ñ Vehicle - When this Vehicle enters, return up to one other target nonland permanent to its owner's hand.
Exhaust Ñ Waterbend {3}: This Vehicle becomes an artifact creature. Put three +1/+1 counters on it. (While paying a waterbend cost, you can tap your artifacts and creatures to help. Each one pays for {1}. Activate each exhaust ability only once.)