Obsidian Remove is a tool that allows your server's members to do End Crystals PVP on your PVP map.

How to setup:

• Place this plugin on your plugins/ folder and start server
• Stop your server
• go to plugins/ObsidianRemove and open config.yml
• set the world in which players will pvp

WorldGuard Flags required:

• Allow People to build in the region, the plugin will disallow placing any block or fluid that is not obsidian, but block ender crystal grief.
• Add the "remover.exclude" permission to your builders so they can place any block