IMO it's obvious that 300% is veeeeeeery very much, no other skill has ever given such a boost in L2. Glad they fixed it. Koreans at first invent a cool skill to interest players play this class, but they never think that it will break class balance. They think like this : "This green orc with huge muscles looks really fearsome he should be the best warrior, let's give him Frenzy. This PR looks like real assasin, killer, let's give him Fatal Counter let him oneshot mages. And so on."