Bukkit

Random dropped items from any block

SimpleAlias

This plugin is good and fun for PyroPvP servers

Automatic inventory management for all your players! Defeat the tedium of manual organization! AutomaticInventory

Bedhealth

Player vs. Monster/Enemy Rewards

a PvP Bounty mercanary system

This plugin is an events plugin, it is more created for lobbies but you can use it for the things you want

Flow

EpicGlass

Custom Player Points

Use HoloAPI to create cool HUDs for Damage!

This plugin adds in soul shards and soul cages just like the Soul Shards mod!

ControlORBle

Finally a proper use for saddles!

Adds backpacks to minecraft with custom recipes

Ever wanted to float around in zero-gravity, well now you can, with Enders Game!

Want to be a superhero? This plugin is perfect! You can be Spiderman, Thor, The Flash, and more!

Secure and configurable Ender Chests

Immersive and lore friendly enhancements for vanilla Minecraft (PaperMC only!)