Rolling cutter & Cross Ripper Slasher at jRO has 1/2 penalty on EDP and has 0.2sec cooldown.
in 2013/04 gungho nerfed Rolling cutter to 3/4 damage in PvP / GvG Maps and 1/3 damage in normal mapas, after launching a new endgame katar, and increasing the area for 5x5 at ballance.
Their dropped so many players, and reverted the nerf in 2013/09, and added the 1/2 penalty, and final damage of RC/CRS on PvP / GvG area +50%.
Criticism a server only for their itens status should be a joke.