How about Dispel II not only getting rid of an effect like normal, but also locks the target out of receiving the buff again for a certain amount of time? Say you're fighting a NM that casts Shock Spikes on itself. You can Dispel II it and for 2 minutes, even if it casts Shock Spikes again, it'll not get the effect. Think it may have a little more utility than a random 2-3 buffs removed, more so if you get a spam-happy buffing mob that wastes TP trying to strengthen itself.