let's say, nerfs will come maybe year after when more people complain about this (and more people paid millions for this) , same as we saw with distortion. People said "distortion gave balance to any class" while it made anyone immortal (with combination of other life steal books, yes) , we see this again, people spends millions, and when time comes up, it may get nerfed. It's pricy because it is op, as we knew people buying distortion first for 2-3m then for 15m later, just because it made people unkillable. Not only magic resistance book is overpowered, it's also orcinus book, for some of classes. Let's say, a chief could run with pretty max cd on pvp, having nonstop 40% rugged hide skill on, maybe bds power of blades skill might be op with that too? Charmer would be able to have block skill active even with low cd, or a priest/sham doubled heal, or stronger shield? For having a little chance win against magic resistance book is simply use "buffing build" , but it's not fun because you have to change it all over again versus other players.