Automotive Designer

Automotive designers are the premier creators of motor vehicles of all kinds in the Forgotten Realms. They tinker around with strange, complex engines in their workshops, always trying to create faster, more efficient motors to deliver them from one point to another.

Tool Proficiency

You gain proficiency with tinker's tools. If you already have this proficiency, you gain proficiency with one other type of artisan’s tools of your choice.

Automotive Designer Spells

You always have certain spells prepared after you reach particular levels in this class, as shown in the Automotive Designer Spells table. These spells count as artificer spells for you, but they don’t count against the number of artificer spells you prepare.

Alchemist Spells

Artificer Level	Spell
3rd	create or destroy water, grease
5th	heat metal, longstrider
9th	stinking cloud, phantom steed
13th	freedom of movement, vitriolic sphere
17th	control winds, telekinesis

Grease Monkey

When you pick this subclass at 3rd level, you learn the ins and outs of vehicle designing, allowing you to repair and modify vehicles. Using a set of tinker's tools, you can fix any vehicle, restoring its HP completely. Fixing a vehicle takes 1 hour, and you can do so while taking a short or long rest.

Additionally, you may also use your tinker's tools to modify a vehicle. You can grant a vehicle 1 modification at a time, and modifying the vehicle takes 1 hour. You can grant a vehicle the following modifications:

Overdrive. As an action, the driver can kick the vehicle into overdrive, doubling its speed. After an amount of rounds equal to your Intelligence modifier, you must roll a dice at the beginning of every subsequent turn of the creature who activated the overdrive. On an odd result, the engine breaks down and the vehicle's speed is reduced to 0 until it is fixed. Air vehicles fall from the sky if they break down while flying.

Ejector Seat. As an action on their turn, or as a reaction when they or the vehicle are targeted by an attack or spell, the driver can eject themselves out of the vehicle, imposing disadvantage on the attack or potentially escaping the spell's area of effect. On their next turn, the driver lands somewhere within 30 feet of where they ejected from.

Off-Road Build. The vehicle ignores difficult terrain.

You may replace a modification for a vehicle at the cost of 40 gold pieces.

Create Engine

At 5th level, you've developed the ability to not only modify existing engines, but build your own. You can now use your tinker's tools to create a vehicle, at the cost of 100 gold pieces and 1 hour. When you create a vehicle, you may grant it 1 modification. Your vehicle has the following properties:

Speed: 90 ft.

Armor Class: 10 + your Intelligence modifier + your proficiency bonus.

Hit Points: your Artificer level times 12.

A creature must use an action to board/exit a vehicle, and a bonus action to turn it on/off. If the vehicle is an air vehicle, it must travel 90 ft. on the ground before taking off, unless it is affected by the updraft caused by the control winds spell.

Tinker's Ingenuity

At 9th level, you learn more tricks of your trade, allowing you to reach new heights in vehicle designing. You can build, fix, and modify vehicles twice as fast. You also unlock the following modifications:

Turret. The vehicle has a turret. The turret has the same AC as the vehicle and a third of its total hit points. As an action, the driver may fire the turret. This attack has a range of 100 ft. and a long range of 400 ft., and it uses your Intelligence modifier and the driver's proficiency bonus. The attack deals force damage equal to 2d8 + your Intelligence modifier.

Armor Plates. The vehicle's AC increases by 2.

Radar. You know the basic shape of the terrain within a 1 mile radius of the vehicle. You know the location and size of any creature medium or larger within 120 ft. of the vehicle (you do not know anything else about them).

Optimal Efficiency

At 15th level, you learn to optimise your work, making better vehicles out of less materials. You can build vehicles and replace modifications at half the gold cost, and each vehicle you build can have up to two modifications at once. Replacing both modifications costs only 20 gold pieces.