Blacksmith expert

You have honed your blacksmithing skill beyond of a normal blacksmith 

• You gain proficiency with smith tools or if you are already proficiency with smith tools you double you proficiency bonus
• While crafting items using smith's tools, you can work in 25 GP increments, rather than 5 GP increments.
• If you have a helper who is not proficient in smith's tools, you can work in 32 gold increments, and if they are you can work in 50 gold increments.