I am in act 2 of Diablo 2 (nightmare) and am getting better runes every now and then, around Amn, Sheal etc
I have an amazon companion with a bow I found that is good. It is rare with +100% or so damage and +50 poison damage and some to attack rating.
Now I saw this recipe in arreat summit:
1 Ort Rune + 1 Amn Rune + 1 Perfect Sapphire + Normal (Basic) Rare Weapon = Exceptional Rare Weapon
The item type is upgraded.
Before perhaps ruining my hireling's bow, I would like to know, does this recipe reroll the properties of her bow?
If not, does it affect them in any way, for example make the properties stronger as well as the weapon base itself?