What Glyphs are good for tanking?
This will depend somewhat on your spec, of course. You’re generally going to want the Glyph that corresponds to the 36 point tanking talent you took (Bone Shield, Unbreakable Armor or Vampiric Blood). In order of importance, Bone Shield is mandatory if you’re Unholy. There is no question about it. Unbreakable Armor is slightly less so, and I’ve personally found that I rarely use UBA much unless I’m trying to give my healer(s) some breathing room. This on top of the recent change to UBA’s Glyph (Grants 15% additional armor instead of +5% Parry and removing Strength). Though the extra 10% Parry is mainly what I use it for, it’s definitely a buff, and I will be keeping it regardless. Vampiric Blood’s Glyph is also well worth taking for an extra 10 seconds to its duration.