Upgrade Sequences

How is it that the Mace's attack power and crit so drastic if its min damage does not change and the crit is only by 8% from 15%?

Artisan Upgrade?

“	Str +1~70, Will 1~50, Luck 1~70	„

A: They don't directly contribute.
B: Its random.

A: It's adding what they contribute to the stats.<br\> B: It says "Artisan Upgrade (Max Roll)".

I find that... misleading.

Its not like everyone's going to do all the calculations of what Str, Will, and Luck contribute.