Block Breaker - One Command

/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:"/scoreboard objectives add BlockBreaker dummy",Riding:{id:MinecartCommandBlock,Command:blockdata ~3 ~-2 ~-1 {Command:fill ~ ~ ~1 ~5 ~1 ~1 stone},Riding:{id:MinecartCommandBlock,Command:blockdata ~3 ~-2 ~1 {Command:fill ~ ~ ~-1 ~5 ~1 ~-1 redstone_block},Riding:{id:MinecartCommandBlock,Command:blockdata ~4 ~-2 ~-1 {Command:"/scoreboard players set @e[type=Item] BlockBreaker 1 {Item:{id:minecraft:iron_pickaxe,Damage:0s}, OnGround:1b}"},Riding:{id:MinecartCommandBlock,Command:blockdata ~4 ~-2 ~1 {Command:"/scoreboard players set @e[type=Item] BlockBreaker 2 {Item:{id:minecraft:piston,Count:1b,Damage:0s},OnGround:1b}"},Riding:{id:MinecartCommandBlock,Command:blockdata ~5 ~-2 ~-1 {Command:"execute @e[score_BlockBreaker_min=1,score_BlockBreaker=1] ~ ~ ~ execute @e[score_BlockBreaker_min=2,score_BlockBreaker=2,r=1] ~ ~ ~ summon Item ~ ~ ~ {Item:{id:minecraft:spawn_egg,Count:1,Damage:65,tag:{display:{Name:\\\"Basic_BlockBreaker\\\"},ench:[{id:100,lvl:1}]}},CustomName:\\\"Basic Block Breaker\\\",CustomNameVisible:1}"},Riding:{id:MinecartCommandBlock,Command:blockdata ~5 ~-2 ~1 {Command:"execute @e[score_BlockBreaker_min=1,score_BlockBreaker=1] ~ ~ ~ execute @e[score_BlockBreaker_min=2,score_BlockBreaker=2,r=1] ~ ~ ~ kill @e[score_BlockBreaker_min=1,r=1]"},Riding:{id:MinecartCommandBlock,Command:blockdata ~6 ~-2 ~-1 {Command:"execute @e[name=Basic_BlockBreaker] ~ ~ ~ setblock ~ ~ ~ dropper 0"},Riding:{id:MinecartCommandBlock,Command:blockdata ~6 ~-2 ~1 {Command:"execute @e[name=Basic_BlockBreaker] ~ ~ ~ summon ArmorStand ~ ~ ~ {Marker:1,Invisible:1,NoGravity:1,CustomName:\\\"BasicBlockBreaker\\\"}"},Riding:{id:MinecartCommandBlock,Command:blockdata ~7 ~-2 ~-1 {Command:"scoreboard players remove @e[type=ArmorStand,name=BasicBlockBreaker] BlockBreaker 1"},Riding:{id:MinecartCommandBlock,Command:blockdata ~7 ~-2 ~1 {Command:"execute @e[name=BasicBlockBreaker,score_BlockBreaker=-100] ~ ~ ~ setblock ~ ~-1 ~ air 0 destroy"},Riding:{id:MinecartCommandBlock,Command:blockdata ~8 ~-2 ~-1 {Command:"scoreboard players set @e[type=ArmorStand,name=BasicBlockBreaker,score_BlockBreaker=-100] BlockBreaker 0"},Riding:{id:MinecartCommandBlock,Command:blockdata ~8 ~-2 ~1 {Command:"execute @e[name=BasicBlockBreaker] ~ ~ ~ detect ~ ~ ~ air 0 scoreboard players set @e[name=BasicBlockBreaker,r=1] BlockBreaker -1000"},Riding:{id:MinecartCommandBlock,Command:blockdata ~3 ~-1 ~-1 {Command:"execute @e[score_BlockBreaker=-1000] ~ ~ ~ kill @e[type=Item,dx=0,dy=0,dz=0]"},Riding:{id:MinecartCommandBlock,Command:blockdata ~3 ~-1 ~1 {Command:"execute @e[score_BlockBreaker=-1000] ~ ~ ~ summon Item ~ ~ ~ {Item:{id:minecraft:spawn_egg,Count:1,Damage:65,tag:{display:{Name:\\\"Basic_BlockBreaker\\\"},ench:[{id:100,lvl:1}]}},CustomName:\\\"Basic Block Breaker\\\",CustomNameVisible:1}"},Riding:{id:MinecartCommandBlock,Command:blockdata ~4 ~-1 ~-1 {Command:"kill @e[score_BlockBreaker=-1000]"},Riding:{id:MinecartCommandBlock,Command:blockdata ~4 ~-1 ~1 {Command:"tp @e[name=Basic_BlockBreaker] ~ -100 ~"},Riding:{id:MinecartCommandBlock,Command:setblock ~3 ~-2 ~ redstone_block,Riding:{id:MinecartCommandBlock,Command:fill ~3 ~-2 ~-1 ~4 ~-1 ~-1 command_block,Riding:{id:MinecartCommandBlock,Command:fill ~3 ~-2 ~-1 ~8 ~-2 ~-1 command_block,Riding:{id:MinecartCommandBlock,Command:fill ~3 ~-2 ~1 ~4 ~-1 ~1 command_block,Riding:{id:MinecartCommandBlock,Command:fill ~3 ~-2 ~1 ~8 ~-2 ~1 command_block,Riding:{id:MinecartCommandBlock,Command:setblock ~1 ~-1 ~ wall_sign 4 replace {Text1:"{text:\\\"Block Breaker\\\",color:dark_blue,bold:true,underlined:true}",Text2:"{text:\\\"by\\\",color:black}",Text3:"{text:\\\"Insane96MCP\\\",color:green,bold:true}",Text4:"{text:\\\"\\\",clickEvent:{action:\\\"run_command\\\",value:\\\"fill ~ ~-2 ~-2 ~9 ~3 ~2 air\\\"}}"},Riding:{id:MinecartCommandBlock,Command:fill ~2 ~-2 ~-2 ~9 ~-1 ~2 stained_glass 3 replace stained_hardened_clay 3,Riding:{id:MinecartCommandBlock,Command:fill ~2 ~-3 ~-2 ~9 ~ ~2 stained_hardened_clay 3 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}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}