WoWDB

Affliction:

Binds the target in demonic energy, reducing physical damage by 10% and increasing the casting time of all spells by 50% (25% on player targets) for 30 sec.

Less effective on dungeon and raid bosses.

Curses
A Warlock can only have one Curse active per target.

Soulburn:
Your Curse of Enfeeblement will affect all enemies in a 15 yard radius around your target.

Demonology, Destruction:

Binds the target in demonic energy, reducing physical damage by 10% and increasing the casting time of all spells by 50% (25% on player targets) for 30 sec.

Less effective on dungeon and raid bosses.

Curses
A Warlock can only have one Curse active per target.