scoreboard players add console lvl64Timer 1
execute if score console lvl64Timer matches 1 run summon minecart -48 69 286 {CustomDisplayTile:1b,DisplayOffset:6,Tags:["level64","tnt"],DisplayState:{Name:"minecraft:tnt"},PortalCooldown:200}
execute if score console lvl64Timer matches 100 run scoreboard players set console lvl64Timer 0