An all in one plugin for almost any SMP! Has support for 1.17 and 1.18 on Bukkit, Spigot and Paper.

Features:

Lifesteal (with craftable hearts)
Customizable Chat Filter
Custom Death Messages (does NOT depend on death type)
More coming in the very near future!

Commands:

• /aio-info - Info command. Usage: /aio-info
• /ls-health - Lifesteal heart management command. Allows you to get and modify a player's amount hearts. Requires the aio_smp.manage_hearts or aio_smp.admin permission. Usage: /ls-health <get|modify> [player] [double health]

Permissions:

• aio_smp.default - default permission node. Granted to everyone by default. Child of aio_smp.admin.
• aio_smp.manage_hearts - required to run /ls-health. Granted to no one by default. Child of aio_smp.admin.
  
• aio_smp.admin - administrator permission node. Granted to OP by default.