Ava's Summon Vehicle

You summon a spirit that assumes the form of a vehicle. Appearing in an unoccupied space within range, the spirit takes on a form you choose that is size large: a Devil's Ride, or a Rowboat. The vehicle has the statistics provided in the official books for the chosen form. It standardly does not come with ammunition for it's weapons, and extra gold or components worth in gold can be used to summon the vehicle with ammo. If the vehicle requires crew to operate, it must be upcasted in order for the vehicle to function with a phantom crew unless you supply the crew on your own (see higher levels). The phantom crew can only operate the vehicle, have the commoner statblock, and don't take up space. They can't leave the vehicle or do anything other than operate the functions of the vehicle.

You control the vehicle the same way as it is normally controlled, and can designate allies who have permission to control it as well as deny others control. The vehicle disappears temporarily when it drops to 0 hit points on it's overall hp or hull, or when you dismiss it as an action. Casting this spell again re-summons the vehicle, with all its hit points restored and any conditions removed.

You can't have more than one vehicle by this spell at the same time. As an action, you can release a vehicle from anyone's control, causing it to disappear permanently alongside with any phantom crew it has if upcasted.

When the spell ends, the vehicle and it's phantom crew (if it has any) gradually fades, giving the riders 10 minutes to dismount. Whenever the vehicle disappears, it leaves behind any objects it was wearing or carrying.

At Higher Levels
When you cast this spell using a spell slot of 4th level and higher, the size of vehicle and type is increased. At 4th level you can summon Huge vehicles like the Tormentor and Scavenger. At 5th level you can summon any gargantuan sea or land vehicle like the Galley or Demon Grinder, or you can summon a huge vehicle with a phantom crew. At 6th level you can summon air vehicles like the Battle Balloon, or a gargantuan sea or land vehicle with a phantom crew. At 7th level you can summon spelljammers like the Damselfly or Space Galleon, or an air vehicle with a phantom crew. Finally, at 8th level, your vehicle can operate in an automated fashion without a crew.