Moon related super-powers?

I need it for my story. I'm thinking of going with the lunacy and so on effects of the moon, and perhaps the fact that it reflects the light of the sun? The fighting style of my character is based on using a rapier to deflect attacks, and also using two familiars, the abilities of which I need you guys help with. Preferably something to do with the moon...and also, another weapon? Thanks, and please, please stop deleting my questions, yahoo =w=