I'm new to the Siege Perilous community, and I'm playing a Necro/Mage/Peacer. My starting guild gave me a mage weapon, and I noticed it has negative modifiers, so I thought it was only for training magery-- lowering the skill so that I could get skill raises using lower level spells. But now I've found out that all mage weapons have negative points to magery. What is the benefit of a mage weapon? Do I need one? And if so, do I just unequip it when I want to cast mage spells?