College of Steam punk

Requires intelligence of 13+

Also gain access to the Artificer spell list 

Spark of invention

After taking this class you gain proficiency in tinkerers tools and access to the Artificer spell list. Also after tinkering with their instrument they gain the ability to inspire more than one person per turn, spells that also only target one ally, for example healing word, can now target any number as long as you spend and adittional spell slot for each targeted ally. 

Instrument of power

At level 6you may imbue your tinkered instrument with a 3rd level spell from any class 

If your instrument is destroyed you may create a new one and if you do you may change this spell 

It can not be cast using spell slots unless you know this spell by other means. It can be cast a number of times equal to (Int + Cha) /2

You may use two uses of this to increase the spells level by 1

One man concert

Your talent of entertainment and your knowledge of invention have combined to make you a spread music and inspiration to your allies while dealing damage to your enimies at the same time

Once per long rest You may use an action to start playing a concert, this creates an aura with a 30 ft radius, you may name any number of allies in the aura and during your action they regain health equal to your inspiration die. When you use this all who you did not single out as an ally must make a dexterity saving throw or take damage equal to your inspiration die, this damage is decided by the DM but is often related to your instrument, if it is steam powered fire my make sense, if electric lighting, if just musical psychic.

This concert lasts as long as you spend your action doing but only for a maximum of turns equal to your charisma modifyer. If you use this that long you must make an intelligence saving throw with a dc of 14, on failure your instrument breaks, you can still cast spells using it but not your instrument of power spell and must spend a long rest to repair.