Murrdox
First Post
Ugh. Magic item cost calculation formulas.... so many different versions... brain... hurts... 
In all seriousness... I'm thinking more along the lines of how the item was made qualifies it as an artifact. I'm not sure what the DMG or the Epic Guide say about this. Somehow I think especially considering what epic characters are capable of, cost should be less important.
If some ridiculously high epic level character uses perfectly normal rules to forge a +20 or something epic weapon.... something like a +8 Vorpal Dancing Shocking, Flaming, and Icy Burst Demon Bane Longsword of Brilliant Energy.
Now, when he makes this thing, as a DM, I don't think I'd grant it instant artifact status. Because destroying artifacts is listed in various places as something that pisses off Gods... I'd say some sort of divine intervention is required.
If a God INSTRUCTED the character to forge the weapon... or kept him safe from harm while the weapon was being enchanted, or the character then USED the weapon to smite an enemy of a God, I could see it being elevated to an artifact level... either that or as was detailed before... something really WEIRD happening, like wounding a God or something.
This is just all DMs perogative, of course.
I mean, a god could make a silly +1 Dagger an artifact if he wanted to.

In all seriousness... I'm thinking more along the lines of how the item was made qualifies it as an artifact. I'm not sure what the DMG or the Epic Guide say about this. Somehow I think especially considering what epic characters are capable of, cost should be less important.
If some ridiculously high epic level character uses perfectly normal rules to forge a +20 or something epic weapon.... something like a +8 Vorpal Dancing Shocking, Flaming, and Icy Burst Demon Bane Longsword of Brilliant Energy.
Now, when he makes this thing, as a DM, I don't think I'd grant it instant artifact status. Because destroying artifacts is listed in various places as something that pisses off Gods... I'd say some sort of divine intervention is required.
If a God INSTRUCTED the character to forge the weapon... or kept him safe from harm while the weapon was being enchanted, or the character then USED the weapon to smite an enemy of a God, I could see it being elevated to an artifact level... either that or as was detailed before... something really WEIRD happening, like wounding a God or something.
This is just all DMs perogative, of course.
I mean, a god could make a silly +1 Dagger an artifact if he wanted to.