I know alot of players here will get mad on what I am about to suggest but this is ridiculous
first thing. Gypsy/Clown have a TAROT skill which can do a pretty good debuffs to any players it even can dispell all your buffs even with GTB on. They Can use "Tarot Skill" using a Combat Knife. They can also do SlowGrace which is probably annoying debuff on War of Emperium.
What I'm suggesting is to not let them wear any R.DevillingHat / L.PooPooHat / Combat Knife. or atleast reduce the effect of "Reduce Damage To Demi-Human" when wear by Clown/Gypsy.
Back when i was a sniper We have this armor "Sniping Suit" which gives us Pro's and Cons. It gives a huge "Reduce Cast Delay" which makes sniper spam FAS really quick and it also gives LUK so it gives more damage to FAS. But this armor is only 1 Slotted and it doesnt apply to the effect of FKing Set. but it still been nerf down due to its OverPower. what im saying is Gypsy/Clown with Reduced Type Armors are OP.