Demolitionist

A Demolitionist practices in the sublime art of detonation, combustion, and destruction, combining various materials and wielding them in ways others might find too dangerous.

Level 3: Tools of the Trade

You gain the following benefits:

Thrown Weapon Proficiency. You gain proficiency with weapons that have the Thrown property.
Tool Proficiency. You gain proficiency with Alchemist's Supplies and Tinker's Tools.
Explosive Crafting. When you craft a nonmagical explosive, the amount of time required to craft it is halved.

Level 3: Demolitionist Spells

When you reach an Artificer level specified in the Demolitionist Spells table, you thereafter always have the listed spells prepared.

Artificer Level	Prepared Spells
3	Assisted Aim, Catapult
5	Continual Flame, Dragon's Breath
9	Conjure Cannonball, Fireball
13	Fire Shield, Stoneskin
17	Wall of Force, Animate Objects

 

Level 3: Expert Sapper

Because of your extensive history with demolitions, you have a keen eye for demolishing structures regardless if its magical or nonmagical, man-made or natural.

You can make a check using your History or Investigation skills to determine the weak points and integrity of a structure you can see. On a successful check, you know the weak points and integrity of the structure and any Attacks against these weak points are Critical Hits.

Additionally, you can also magically create a variety of Bombs using one part of each type: Powders, Fuses, and Casings. These Bombs can be assembled and thrown as part of one Magic action targeting a creature or a point within range. 

Casing Size

Casing Size is a Bomb property that represents the total volume of Powder that can fill a Casing. Normally, this means its effects are increasingly multiplied as the Casing Sizes get larger.

Explosion Radius

Explosion Radius is a Bomb property that represents the total Spherical Radius of a Bomb's explosion.

Powders	Effect (stacks Per Casing Size)
Blast Powder	1d10 Force damage, Explosion Radius (5 ft.), each creature makes a Dexterity Saving Throw or be knocked prone.
Smoke Powder	Explosion Radius (15 ft.), causes everything to become Heavily Obscured in Explosion Radius. Lasts until the end of your next turn.
Fume Powder	Explosion Radius (10 ft.), 1d6 Poison damage to all creatures in Explosion Radius at the start of every turn. Each creature makes a Constitution Saving Throw or become Poisoned for 1 minute. Lasts until the end of your next turn.
Burn Powder	1d8 Fire damage, Explosion Radius (5 ft.), deals additional 1d8 Fire damage at the start of the next turn for every creature in Explosion Radius. Any flammable object not worn or carried is set on fire.

 

Fuses	Effect
Short Fuse	Bomb explodes upon impact.
Long Fuse	Bomb explodes at the start of your next turn.

 

Casings	Effect
Small Casings	Crafts two instead of one. Casing Size is 1, damage dice are downgraded by one, Thrown (60/120), Light. Two can be thrown as part of one attack.
Medium Casing	Casing Size is 2, Thrown (40/80).

 

Level 5: Powder Keg

As a Magic action, you can summon a Powder Keg with a Casing Size of 3 in an unoccupied space within 15 feet of you. It appears as a wooden barrel, and it's filled to the brim with one of your Powder types. It explodes when damaged or exposed to any source of fire within 5 feet of it. If it explodes, each creature inside its Explosion Radius has Disadvantage on any Saving Throws originating from the Powder used to fill it. If it does not explode within 1 minute, the Powder Keg dissipates.

At the start of every one of your turns, you can use a Bonus Action to increase the Casing Size of the Powder Keg by 1.

You can only summon a Powder Keg once per turn, and it can only be summoned a number of times equal to your Proficiency Bonus per Long Rest.

Level 9: Refined Powders

The Casing Size of your Bombs are doubled, and your Powder Keg can be summoned out to a range of 60 feet.

Additionally, your Powders gain new properties:

 TBD

Level 15: BIG BOMB ABILITY TBD

TBD