Op pvp is really fun game but right now all it have is theese three basics facts : Kill,Loot,and Death obviously its all did the Op pvp does is those three lets make it even more fun . Lets start up by making the Killing more fun by : When Death Loose 10 % of your money, Add Bounty to have your Revenge wish by making people pay for killing a person, Potion Shops (right now only there's only instant damage and speed) add something like Strengh potions Invisibility potion , fire resistant, or even resistant potion, add MCMMO . and maybe even make some random chest that gives random loots every few minutes, make's people do more exploring of the map rather than just look around to kill people. and hey probally add some monster to the game to gain money even faster (but make them rare).
No support. Say someone who has just joined kills a player with 3000 kills. They get 300 for killing one player. With mcmmo ppl with a high swords lvl and a sharpness 30 sword could kill anyone (even with a gapple on). Strength potions were to op so they were removed and eating a gapple gives you fire res and resistance so potions are not needed. The bounty idea could Work and the loot in chests(but only if it was bad and their wasn't much of it). Monsters would make the game to easy as they are 1 hit kills and do no damage.