Two ideas for my need: My first idea: "I don't want wither boss to be able to spawn or enter the overworld. There is always these players who want so ruin a big smp server before they are taken for their actions. Lots of builds and wither can easy destroy too much before killed. " * No wither boss spawn (or enter to the overworld through nether portal or end portal) in the overworld. * Wither can kill and destroy block as usual in nether and the end, but not in the overworld. My second solution idea: Wither can spawn in all dimensions as usual, but can only harm players. * Wither can spawn in all dimensions * Wither can not destroy blocks, sign, item frames, banner etc.. * Wither can not kill animals but "players" I'm looking for one of those solutions. Need it very much and what is easiest to make is the same. Want the overworld to be safe and wither to be only spawnble in nether or the end. Name: No Wither Overworld? Version: 1.17.1 JAVA Command: An easy true/false command. could be /Witherboss - Overworld/nether/the end/reload - true/false. (reload the action from true to false or false to true). When its true the plugin is on, false is off and wither act like normal as vanilla.