Every glyph + other professions Follow

http://wow.crafterstome.com/recipes/inscription.html

Scroll through and take a look at some of the glyps, there some to be a lot of nice ones for an affliction lock. Decreased CD on iHoT seems nice. Obviously the +4% nightfall one seems essential and then a decreased cast time of UA possibly as the 3rd and last major glyph. Keeping in mind you can only have 3 what 3 would you chose and for what eg. pvp or raids.