ModsJava
SimpleDuels | The Ultimate 1v1 Duels Plugin for 1.21+
a duel plugin that is super easy to configure
⬇ Download on SpigotSimpleDuels | The Ultimate 1v1 Duels Plugin for 1.21+ is a free Minecraft Java mod. Compatible with Minecraft 1.16, 1.17, 1.18, 1.19 and newer. Available via Spigot. Download it and open it directly in the game.