i see the OP gear as a way to take money out of the economy.
make it so when you die you lose money an xp. this would mean creating/finding a bank plugin. players would be able to depo and withdraw from this bank one for xp one for money this would give some incentive to go hunting other players/ pvpin general. So players would keep items but lose the money and xp they had on them. also possibly adding a shop that players could buy OP items swords and or gear.
so u can lock colored shulkers just like a chest?
I agree with there are other spawn eggs in the crates pandas should be added just a very rare chance just like wild.
I understand what you are trying to say but some of the things like people hiding inside thier homes/towns would more than likely just make them not come onto the server for those days also just force toggleing pvp usually doesnt go to well. I think a pvp arena or a server with pvp enabled as well as nations for wars should be added.