scoreboard players set @s KyuDummy2 0

execute at @s[scores={KyuDummy=..21000}] run fill ~1 ~2 ~1 ~-1 ~3 ~-1 air replace light
execute at @s[scores={KyuDummy=..21000}] run fill ~ ~1 ~ ~ ~1 ~ light replace #suhc:bloodboltpassthrough