A Higo El Spectro sounds like a cool idea...I'd say a 20 St (30 when grown) A Monster hunters art (martial arts, with full grapples and escapes) and the Silver Mask +10 Pres defensive, +20 Pres vs spirits and gods etc and maybe a Cosmic power pool/Multi Only in the ghostworld -2 ? It can just be a muguffin though, as no supernatural creature is going to risk facing it's power. So he mostly uses Pres based attacks on spirit creatures, and manly fists on Chupacabra and the like.