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. 

You gain the following drawbacks:

• Your alignment will permanently become chaotic neutral.
• You have disadvantage on perception  checks and -2 passive perception.
• Your character has dulled senses and can no longer enjoy food or drink as much.