Theres custom crafting recipes for pretty much any vanilla item that youd actually use like bones, blaze rods etc
Of course theres the custom towny
Guns obv
Probably like 50+ plugins you dont see that make the server run as "smooth" as it does
Treelopper and brewery obv
Anticheat and antispam (btw towards the end of X the anticheat plugin ramped up for some reason so you could sprint and jump in memegear without glitching out pls fix)