A mystery command TEST

/summon FallingSand ~ ~1 ~ {Block:redstone_block,Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:"/fill ~ ~0 ~1 ~ ~-10 ~1 redstone_block"},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~ ~3 ~1 stone},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~ ~4 ~ command_block 0 replace {Command:fill ~ ~2 ~ ~ ~-14 ~1 air}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:"/gamemode 0 @p"},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:"/tp @p 100 100 100"},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:"/fill 103 106 97 97 106 104 minecraft:obsidian"},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:"/fill 103 99 104 97 105 104 minecraft:obsidian"},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:"/fill 103 100 97 103 105 103 minecraft:obsidian"},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:"/fill 97 100 97 103 105 97 minecraft:obsidian"},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:"/fill 97 100 103 97 105 97 minecraft:obsidian"},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:"/fill 97 99 97 103 99 103 minecraft:obsidian"},Time:1,Riding:{id:"FallingSand",Block:stone,Time:1}}}}}}}}}}}}}