Talk:Haunting Guise/@comment-66.229.252.160-20110922060037/@comment-66.68.91.8-20110927002907

20 spell penetration adds more damage to your spells than 30 ability power does. This item adds more spell damage for most AP champs than three doran's rings, let alone two.

That being said, I agree that 1485g is still too damn expensive.