PRIDuels
Duels plugin with arenas and variety of customizable restrictions.
📖About PRIDuels
Duels is a restrictions orientated plugin. I developed this plugin for my Minecraft server to address a player request for controlled, one-on-one battles. Players were looking for a way to duel each other without specific advantages, like using totems, golden apples, bows, shields, potions, ender pearls, elytras and etc. Previously, they had to rely on moderators to enforce these restrictions, which caused additional issues, so I created this plugin to solve that issue.
/duel opens the GUI below. You can toggle some of restrictions by clicking on them. When you are done click Start and duel request with the same Restriction properties will be sent to the target.
Target POV:

The DENY/ACCEPT messages are clickable.
When you accept the request it teleports you to the arena and starts counting down from 5 to 0
After one of the player is dead:

This plugin also has spectating system. Just do /duels spectate player.
You can also turn off the unwanted restrictions/features.
You are not permitted to claim this resource as your own creation.
That's it. Please use discord link below to get support.