Sync your economy accounts over many servers using MySQL.
Creative (+NBT) copy feature under your control.
Sync your players experience over many servers using MySQL.
[1.7.10 - 1.13.2] Similar to popular EnderChest++ but with more features and up to date.
[1.13-1.19.3] Ghosts effects upon players death.
MySQL or FlatFile Economy Bank System using signs.
Hide messages or errors from server console and logs.
Restrict item ownership, placement, usage, pickup, crafting, brewing, creative menu.
Sync your players inventory/armor over many servers using MySQL.