Auto's Conjure Armada

Scribed in the tides of ambition and refined by the mind of Admiral Ava Swan, this spell is the pinnacle of strategic magic for those with commanding presence. Created by Autopilot, the admiral’s brilliant and unwavering Autognome wizard, this spell embodies the essence of command over land or sky.

When casting the spell, choose one of the following options to project from a diamond cube you hold:

Fleet of Spelljammers. You conjure several ethereal spelljammers, as many as half your proficiency modifier. Each spelljammer is the same stat, and crewed with a phantom crew. They use the standard spelljammer statblocks. They are your choice of which type, choices being a spelljammer you own without upgrades, but most creatures and objects in the material plane phase through it, making them unable to use as transportation and can only attack or be attacked. You can, as a bonus action on your turn, mentally command them to make the the spelljammers attack or move their speed. They make as many attacks as they normally would, though they use your spell attack bonus for attacks instead of their statblock bonus, and deal magical damage.

Flotilla of Destroyers. You conjure several ethereal water vehicles, as many as half your proficiency modifier. Each water vehicle is the same stat, and crewed with a phantom crew. They use the standard water vehicle statblocks. They are your choice of which type, choices being a water vehicle you own without upgrades, but most creatures and objects in the material plane phase through it, making them unable to use as transportation and can only attack or be attacked. You can, as a bonus action on your turn, mentally command them to make the the water vehicle attack or move their speed. They make as many attacks as they normally would, though they use your spell attack bonus for attacks instead of their statblock bonus, and deal magical damage.

Convoy of War Machines. You conjure several ethereal land vehicle, as many as your proficiency modifier. Each land vehicle is the same stat, and crewed with a phantom crew. They use the standard land vehicle statblocks. They are your choice of which type, choices being a land vehicle you own without upgrades. You can, as a bonus action on your turn, mentally command them to make the the land vehicle attack or move their speed. They make as many attacks as they normally would, though they use your spell attack bonus for attacks instead of their statblock bonus, and deal magical damage. In this mode, you have to hold concentration on the spell.

To conjure the vehicles, you need a diamond cube worth 100,000 gold pieces on your person and a miniature replica of a vehicle you own to give the cube a design to conjure. Whether you use the Fleet, Flotilla, or Convoy option, the spectral crews vanish when the spell ends, and the ships or vehicles dissolve into shimmering motes of stardust. If a summoned ship or vehicle is reduced to 0 hit points, it immediately vanishes. These vehicles appear in unoccupied spaces within range and follow your mental commands, using their weapons and abilities as described in their stat blocks, and share your initiative. The vehicles vanish if they move 5 mile away from you.