Mending Master

You have mastered the cantrip "Mending"

With the mending cantrip you now, 

don't require misfire rolls for firearms

fuse 2 objects together of similar non-organic material (Ex. Wood, Metal, Glass) also known as a "Mending Weld"

You can make a "weld" up to 3ftx3ftx3ft cube of space, (ex. Making a boulder out of pebbles, a log out of branches, repairing a section of a house)