Deathly Blizzard - AoE Elemental Torment, ticks 4 times and giving x1 torment on all ticks so x4 if all ticks hit the target. Chance of resist.
Caster pets - Feated to give Spiritual torment, Dread pets give AoE Spiritual Torment.
Gangrenous Stench - Physical AoE Wreck centered on caster.
Quell the Ether - Fire resistance 2-3 AA points so its bit longer and refreshes faster.
Ghoulish Feast - Giving group physical and magical lifetap for health, stamina and mana. 15 seconds duration.
Unimaginable Terror - AoE fear
Freeze - stuns target for few seconds
Ice Shackle - Snares target for a while
Frost Blast - Cone aoe root, dont really use in raids as even slight damage will release them from root.
Runed Flesh - Mage shield for group
Enchanter x1 - AA buff to rogues