Looking at the example artifacts, it seems normal for them to give minor (and often situational, but notable) bonuses outside of whatever Evocations they offer. So you'll have that to consider... I'm no good at designing artifacts, but I'd like to help if I can. Do you know what you want the theme of the weapon to be?<br/><br/>Though the GM can probably help more and is the one that will have to approve it... I'll see if I can come up with any ideas, at least.