/summon FallingSand ~ ~1 ~ {Block:redstone_block,Time:1,Riding:{id:"FallingSand",Block:command_block,Time:1,TileEntityData:{Command:/fill ~ ~ ~-1 ~ ~-7 ~-1 redstone_block},Riding:{id:"FallingSand",Block:command_block,Time:1,TileEntityData:{Command:/fill ~ ~2 ~ ~ ~-7 ~-1 air},Riding:{id:"FallingSand",Block:command_block,Time:1,TileEntityData:{Command:/setblock ~ ~-5 ~-4 wool 14},Riding:{id:"FallingSand",Block:command_block,Time:1,TileEntityData:{Command:/setblock ~ ~-4 ~-5 command_block 1 0 {Command:/execute @a ~ ~ ~ detect ~ ~ ~ light_weighted_pressure_plate 1 summon Creeper ~ ~ ~ {ignited:0,Fuse:0,CustomName:"a land mine"}}},Riding:{id:"FallingSand",Block:command_block,Time:1,TileEntityData:{Command:/setblock ~ ~-3 ~-3 command_block 1 0 {Command:/execute @a ~ ~ ~ detect ~ ~ ~ light_weighted_pressure_plate 1 setblock ~ ~ ~ air}},Riding:{id:"FallingSand",Block:command_block,Time:1,TileEntityData:{Command:/setblock ~ ~-1 ~-4 command_block 1 0 {Command:/setblock ~ ~-1 ~ redstone_block}},Riding:{id:"FallingSand",Block:command_block,Time:1,TileEntityData:{Command:/setblock ~ ~-2 ~-4 command_block 1 0 {Command:/setblock ~ ~1 ~ air}},Riding:{id:"FallingSand",Block:command_block,Time:1,TileEntityData:{Command:/tellraw @a {text:"Land Mines Installed! Replace red wool to start machine, then step on a gold pressure plate! Check Out My Youtube: Derptastick",color:yellow}}}}}}}}}}}