The change here seems obvious – boost Frost presence's mitigation while reducing the mitigation of some other abilities, especially Icebound Fortitude and Bone Shield.One idea we have for Icebound Fortitude is to scale the mitigation based on defense skill. This lets the ability be less of a paladin bubble in PvP for dps knights, while still letting it act more like Shield Wall for tanks. It also has the side effect of making defense slightly more attractive to death knights. (Let me add before it's asked that yes we understand Ferals have this problem too and we are working on it.) Unholy is a very popular tanking spec, largely on the strength of Bone Shield. Expect to see some buffs to tanking talents in the Blood tree especially.Rune Strike was intended to be a reactive tanking tool, not a rogue killer.WOW GOLD players will probably chill its weapon damage and increase its threat.We don't like the behavior where DKs feel like they are supposed to drop Death and Decay to generate runic power before a pull. It just looks goofy. We will probably lower the runic power costs of Unholy Blight and Horn of Winter, which seem to be the primary reasons to generate RP. Horn of Winter will probably be something like no cost, 30 sec cooldown, generates 10 rp.Minor glyphs are discovered by using Minor Inscription Research. The minimum skill listed is the lowest Inscription skill you will be able to discover the glyph. Major glyphs are thought to be discovered using Northrend Inscription Research, but not all these glyphs have been confirmed yet.