One of my players wants to build a forge (see How much gold would the construction of a forge cost?).
I explained to him how the creation of a magic item works (like a +1 weapon, for example), and he asked me how his proficiency with smith's tools was supposed to help him.
Well, the PHB p.154 says the following:
Proficiency with a set of artisan’s tools lets you add your proficiency bonus to any ability checks you make using the tools in your craft.
But crafting a magic item doesn't require any ability check!
So my question is, what is the purpose of having proficiency with artisan's tools?
And more specifically with smith's tools?
Best Answer
For crafting non-magical items.
From the Downtime Activities on page 187 of the PHB:
So RAW it would appear that crafting doesn't actually require any ability checks. You just need proficiency in artisan's tools to be able to craft non-magical items in the first place.
But the DM might call for other ability checks that require artisan's tools.
From page 154 of the PHB: