/summon FallingSand ~ ~1 ~ {Block:"minecraft:redstone_block",Time:1s,Passengers:[{id:"FallingSand",Block:"minecraft:activator_rail",Time:1s},{id:"MinecartCommandBlock",Command:"fill ~7 ~1 ~1 ~2 ~-1 ~-1 stained_hardened_clay 3 hollow"},{id:"MinecartCommandBlock",Command:"fill ~7 ~ ~1 ~2 ~ ~-1 stained_glass 15 hollow"},{id:"MinecartCommandBlock",Command:"setblock ~3 ~ ~ repeating_command_block 5 replace {Command:\"replaceitem entity @p slot.hotbar.8 dirt\",auto:1b,TrackOutput:0b}"},{id:"MinecartCommandBlock",Command:say poop},{id:"MinecartCommandBlock",Command:"setblock ~4 ~ ~ chain_command_block 5 replace {TrackOutput:0b,auto:1b,Command:\"replaceitem entity @p slot.hotbar.7 diamond\"}"},{id:"MinecartCommandBlock",Command:gamerule logAdminCommands false},{id:"MinecartCommandBlock",Command:gamerule commandBlockOutput false},{id:"MinecartCommandBlock",Command:setblock ~ ~-1 ~-1 repeating_command_block 0 replace {Command:"kill @e[type=MinecartCommandBlock,r=5]"}},{id:"MinecartCommandBlock",Command:setblock ~ ~1 ~-1 repeating_command_block 0 replace {Command:"fill ~ ~3 ~2 ~ ~-3 ~ air"}},{id:"MinecartCommandBlock",Command:setblock ~ ~ ~-1 redstone_block}]}