Explosives Expert
Prerequisite: A proficiency with Tinker's tools, a DEX of 13 or higher, and INT of 13 or higher.

You’ve developed the Skills necessary to accurately craft and use high explosives. You gain the following benefits:


You have advantage on Attack rolls against Structures and siege weapons.
It costs half as much for components for the creation of explosives.
You automatically succeed on saving throws on AOE elemental attacks.
You can now affectingly imbue different effects to explosives.
For example; Adding blade shards to the crafting process adds the ability to inflict bleed along with the fire damage, or you add acid veils to change the damage type to acid improving damage to structures. All at an increased cost for components.

Bomb Maker
During each Long Rest, you can use 20gp worth of materials to create Bombs. Make a Crafting Check with Alchemist's Supplies to create a number of Bombs equal to your check value divided by five (rounded down). If this number is zero, instead take 3d6 fire damage.

Also, you may add your Proficiency Bonus to the DC Check for your Bombs, and creatures take half damage upon a successful save.