Levels System is a plugin that allows you to configure your own leveling system and add rewards on level. You can set required exp points for each level. Plugin creates a new experience table and you can modify the experience you get from different actions like killing mobs, mining, smelting...
EpicSkyWars - the skywars game which include more entertainments and some intersting stuff. This plugin has guardians, custom tnts, map crumble, kits, custom enderpearls and much more! You can make Team or Solo games. This plugin tested with 16 players and could be used for unlimmited slots...