Only one command, DOOM MACHINE!

/summon MinecartCommandBlock ~ ~1 ~ {Command:kill @e[type=MinecartCommandBlock,r=1],Riding:{id:MinecartCommandBlock,Command:setblock ~ ~-1 ~1 redstone_block,Riding:{id:MinecartCommandBlock,Command:setblock ~ ~ ~1 command_block 0 replace {Command:fill ~ ~-3 ~-1 ~ ~ ~ air},Riding:{id:MinecartCommandBlock,Command:"/tellraw @a [\"\",{text:\"Thanks for installing The DOOM MACHINE! \",bold:true,color:dark_red},{text:\"\\n\"},{text:\"Created by Wraithcraft.\",color:aqua}]",Riding:{id:MinecartCommandBlock,Command:blockdata ~3 ~-2 ~-1 {Command:fill ~ ~ ~1 ~2 ~2 ~1 stone},Riding:{id:MinecartCommandBlock,Command:blockdata ~3 ~-2 ~1 {Command:fill ~ ~ ~-1 ~2 ~2 ~-1 redstone_block},Riding:{id:MinecartCommandBlock,Command:blockdata ~4 ~-2 ~-1 {Command:"execute @e[type=Pig] ~ ~ ~  setblock ~ ~-1 ~ minecraft:air"},Riding:{id:MinecartCommandBlock,Command:blockdata ~4 ~-2 ~1 {Command:"execute @e[type=Cow] ~ ~ ~ setblock ~ ~ ~ minecraft:lava"},Riding:{id:MinecartCommandBlock,Command:blockdata ~5 ~-2 ~-1 {Command:"execute @e[type=Sheep] ~ ~ ~ summon LightningBolt ~ ~ ~"},Riding:{id:MinecartCommandBlock,Command:blockdata ~5 ~-2 ~1 {Command:"execute @e[type=Chicken] ~ ~ ~ setblock ~ ~ ~ minecraft:bedrock"},Riding:{id:MinecartCommandBlock,Command:blockdata ~3 ~-1 ~-1 {Command:"execute @e[type=Rabbit] ~ ~ ~ summon PrimedTnt ~ ~ ~"},Riding:{id:MinecartCommandBlock,Command:blockdata ~3 ~-1 ~1 {Command:"execute @e[type=Zombie] ~ ~ ~ setblock ~ ~3 ~ minecraft:obsidian"},Riding:{id:MinecartCommandBlock,Command:blockdata ~4 ~-1 ~-1 {Command:"execute @e[type=Creeper] ~ ~ ~ setblock ~ ~-2 ~ minecraft:tnt"},Riding:{id:MinecartCommandBlock,Command:blockdata ~4 ~-1 ~1 {Command:"execute @e[type=Skeleton] ~ ~ ~ setblock ~ ~3 ~ minecraft:obsidian"},Riding:{id:MinecartCommandBlock,Command:blockdata ~5 ~-1 ~-1 {Command:"execute @e[type=Enderman] ~ ~ ~ setblock ~ ~4 ~ minecraft:obsidian"},Riding:{id:MinecartCommandBlock,Command:blockdata ~5 ~-1 ~1 {Command:"execute @e[type=Spider] ~ ~ ~ setblock ~1 ~ ~ minecraft:web"},Riding:{id:MinecartCommandBlock,Command:blockdata ~3 ~ ~-1 {Command:"execute @e[type=CaveSpider] ~ ~ ~ setblock ~1 ~ ~ minecraft:web"},Riding:{id:MinecartCommandBlock,Command:blockdata ~3 ~ ~1 {Command:"execute @e[type=EnderDragon] ~ ~ ~ setblock ~10 ~ ~ minecraft:tnt"},Riding:{id:MinecartCommandBlock,Command:blockdata ~4 ~ ~-1 {Command:"execute @e[type=EnderDragon] ~ ~ ~ setblock ~9 ~ ~ minecraft:obsididan"},Riding:{id:MinecartCommandBlock,Command:blockdata ~4 ~ ~1 {Command:"execute @e[type=Slime] ~ ~ ~ setblock ~ ~-1 ~ minecraft:slime"},Riding:{id:MinecartCommandBlock,Command:blockdata ~5 ~ ~-1 {Command:"execute @e[type=LavaSlime] ~ ~ ~ setblock ~ ~-1 ~ minecraft:lava"},Riding:{id:MinecartCommandBlock,Command:blockdata ~5 ~ ~1 {Command:" "},Riding:{id:MinecartCommandBlock,Command:setblock ~3 ~-2 ~ redstone_block,Riding:{id:MinecartCommandBlock,Command:fill ~3 ~-2 ~-1 ~5 ~ ~-1 command_block,Riding:{id:MinecartCommandBlock,Command:fill ~3 ~-2 ~-1 ~5 ~-1 ~-1 command_block,Riding:{id:MinecartCommandBlock,Command:fill ~3 ~-2 ~1 ~5 ~ ~1 command_block,Riding:{id:MinecartCommandBlock,Command:fill ~3 ~-2 ~1 ~5 ~-1 ~1 command_block,Riding:{id:MinecartCommandBlock,Command:setblock ~1 ~ ~ wall_sign 4 replace {Text1:"{text:\\\"Destroy the\\\",color:dark_blue,bold:true}",Text2:"{text:\\\"Doom Machine?\\\",color:dark_blue,bold:true}",Text4:"{text:\\\"\\\",clickEvent:{action:\\\"run_command\\\",value:\\\"fill ~ ~-3 ~-2 ~6 ~4 ~2 air\\\"}}"},Riding:{id:MinecartCommandBlock,Command:setblock ~1 ~-1 ~ wall_sign 4 replace {Text1:"{text:\\\"INFO\\\",color:dark_purple,clickEvent:{action:\\\"run_command\\\",value:\\\"/tellraw @a [\\\\\\\"\\\\\\\",{text:\\\\\\\"This is the Doomsday Machine! This is designed to make it nearly impossible to survive!(this is also ridiculous)\\\\\\\\nNo more meat drops, Zombies dont burn in daylight, and dont let that creeper explode!\\\\\\\",color:green},{text:\\\\\\\"\\\\\\\\n\\\\\\\"},{text:\\\\\\\"Created by Wraithcraft\\\\\\\",italic:true,color:gold}]\\\"},bold:true}"},Riding:{id:MinecartCommandBlock,Command:fill ~2 ~-2 ~-2 ~6 ~ ~2 stained_glass 3 replace bedrock 0,Riding:{id:MinecartCommandBlock,Command:fill ~2 ~-3 ~-2 ~6 ~1 ~2 bedrock 0 hollow,Riding:{id:MinecartCommandBlock,Command:gamerule commandBlockOutput false,Riding:{id:MinecartCommandBlock,Riding:{id:FallingSand,Block:activator_rail,Time:1,Riding:{id:FallingSand,Block:redstone_block,Time:1,Riding:{id:FallingSand,Block:stone,Time:1}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}