[quote=@Scarifar]
Let's start small. These are mortals, after all. Then, whatever metal ores and stuff they can find will be fit for forging.
[/quote]

Speaking of which, I'm assuming that while they can summon weapons and whatnot at will, these are for their own personal use rather than being able to summon an infinite amount of weapons and throw them at their allies. Right?
And while they can summon a an anvil and forge to use, I'm assuming they metal most be provided to them rather than them being able to summon that too. Correct?