Talk:Thornmail/@comment-15675781-20150524005722/@comment-24095861-20150602222501

You've misunderstood something mate. The item doesn't give AP, it returns AA and on hit damage as 30% of that number as magic damage. There is no AP in the formula at all. The only stats accounted for are the attackers AD and their MR for the damage dealt. Most mages don't care about thornmail because most of their damage is usually centered around their spell damage (typically magic damage) and therefore, very little of their damage is reflected (potentially none of it if they never auto attack)