Why does it have to be so complicated? Just go random to the location in the default spawn height, check the blocks around and change them. You...
https://www.spigotmc.org/resources/combattime.85081/ I got you homie edit: I didn't put commands in there, because with my solution thei're not...
I did this plugin some time ago: https://www.spigotmc.org/resources/teleportationgates.77017/ It schould work up to 1.15, but I didn‘t tested it...
I gonna finish it today. Edit: Or I pass this time, don't have much time, sorry
https://ancode.de/PLUGBlockMan.php <- there it is.
Write me, if you still need this plugin
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