Dwarven Metalworker

Prerequisite Dwarf

You've picked up a fair bit of skill related to matters of the forge.

Increase one ability score by 1, to a maximum of 20.
You gain proficiency with smith's tools
You can spend one hour going over a medium or heavy armor. By strengthening its joints and weak spots, and customizing it to yourself, you can elevate its protection and use to one better suited to a dwarf like yourself. While wearing it, whenever a nonmagical weapon would deal damage equal to half your level or less (rounded up) to you, that damage is reduced to 0 instead. Additionally, you can don and doff it in half the normal time.