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Hit a player to kill and ban them instantly.
Hit a player to kill and kick them instantly.
Hit a player or an entity to kill it instantly
Apply potion effects to mobs up to 128 blocks away
Targeted entities get a rainbow glowing outline
Clockwise from top: Doom - kills players when it expires, or if level II, bans them; Antidote - the only way to cure ACME effects, as milk buckets don't work; Marked - track players; Inhibition - prevents players from moving or interacting with the world

Silly and fun in-game tools to amuse and help server owners moderate their players in a diegetic fashion.