SmartBuff is a buff addon, to cast buffs ease and quickly. All classes are supported. Bind a key, scrollwheel or use the action button and it checks if you, a party/raid member, also hunter and warlock pets, needs your buff and cast it. Use the options menu to configure it you like, as example: buffs, raid subgroups, pets, etc. Run the mod when ever you wish, if nothing is buffed, there is no penalty or cool down.