I was not precise enough, true.
Classes of weapons I've seen:
-Regular non magical weapons: Aisha's sword and Big Guy's Axe. Some of Lion's short swords ? No mana storage/conductivity long life
-Bell's mid-size sword, long knife: Mana conductive blade, needs loads of mana. Long life.
-Welf swords: mana/spell storage. Versatile, powerful but limited use. Around 5 uses or less depending on power output ?