scoreboard players set #KyuAllowNetherCorruption KyuDummy 1
tellraw @s ["",{"text":"Nether Corruption is now ","color":"gold"},{"text":"ON","color":"green"},{"text":".","color":"gold"}]

gamerule sendCommandFeedback false
execute in overworld run setblock 999998 122 999981 command_block[facing=up]{auto:1b,Command:"gamerule sendCommandFeedback true",TrackOutput:0} destroy