[duels extension] leaderboards

Required Duels Version: 3.3.0 or higher An extension for Duels. Add Hologram, Sign, and Head Leaderboards to your server! Customizable Group Prefixes this + PlaceholderAPI + DeluxeMenus: Click to see how it looks like in DeluxeMenus config.yml! Step 1. Install Duels if you haven't...