Way to fix this server: its so simple its ludicrous... Make each set BENEFIT for their class. There is so many ways of doing it.
Physical dpser barb/partwise Sniper= +% dmg/+wep skill/+ mana reg/+ Hp reg
Wizzards= +% dmg/+maglvl/+mana reg/+HP reg
Blockers(paladin)= +armor/+protection%/Resistance to elements/hp reg/mana reg
Vodoomasters= +%manapool/+maglvl/+healing(no idea if that can be done)/Mana reg/hp reg
Yet again i've no idea about the boundary of makable stuff in tibia but Even stuff like maby highest tier can give + dmg to ur spells(if possible).
There is so many ways to fix it and it just have to be done
Thanks for your feedback. Pretty much everything you said is possible to do. I will ask Moist to look into it.