scoreboard players add @e[type=armor_stand,name=KyuChest,sort=nearest,limit=1] KillECChestTimer 1
data merge block ~ ~ ~-1 {TransferCooldown:0}
execute if entity @e[type=armor_stand,name=KyuChest,sort=nearest,limit=1,scores={KillECChestTimer=400..}] run setblock ~ ~ ~ air
execute if entity @e[type=armor_stand,name=KyuChest,sort=nearest,limit=1,scores={KillECChestTimer=400..}] run scoreboard players set @e[type=armor_stand,name=KyuChest,sort=nearest,limit=1] KillECChestTimer 0