Minecraft 1.8 Mob Bow Command

/summon FallingSand ~ ~2 ~ {Block:redstone_block,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~1 ~1 ~1 ~-1 ~-24 ~-1 air},Time:1,Riding:{id:FallingSand,Block:stone,Time:1,Riding:{id:FallingSand,Block:redstone_block,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/fill ~ ~ ~-1 ~ ~-21 ~-1 redstone_block},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:tellraw @a {text:"=======",color:dark_aqua,bold:true,extra:[{text:"Thanks For Downloading! By EthanCreeperz :D",color:gold,bold:true},{text:"=======",color:dark_aqua,bold:true}]}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:setblock ~-3 ~-18 ~-3 redstone_block},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:setblock ~-3 ~-16 ~-6 redstone_torch},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:setblock ~-3 ~-16 ~-5 unpowered_comparator},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:setblock ~-3 ~-15 ~-6 command_block 0 replace {Command:/execute @e[type=Arrow] ~ ~ ~ /summon Pig ~ ~-1 ~}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:setblock ~-3 ~-13 ~-5 command_block 0 replace {Command:/kill @e[type=Arrow]}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:setblock ~-3 ~-13 ~-4 command_block 0 replace {Command:testfor @e[type=Arrow]}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:setblock ~-3 ~-11 ~-3 command_block 0 replace {Command:fill ~ ~-1 ~ ~ ~-1 ~ air}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:setblock ~-3 ~-11 ~-2 command_block 0 replace {Command:fill ~ ~ ~-1 ~ ~ ~-1 redstone_block}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:setblock ~-3 ~-9 ~-2 command_block 0 replace {Command:replaceitem entity @p slot.hotbar.0 bow 1 0 {ench:[{id:49,lvl:10}],display:{Name:"Super Mob Bow!"}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:setblock ~-3 ~-9 ~ wall_sign 3 replace {Text1:^,Text2:Press this button,Text3:to get your,Text4:items!}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:setblock ~-3 ~-6 ~ skull 3 replace {SkullType:3,ExtraType:EthanCreeperz}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:setblock ~-3 ~-6 ~ stone_button 3},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~-2 ~-5 ~-6 ~-4 ~-6 ~-2 stained_glass 2},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~-3 ~-5 ~-7 ~-3 ~-4 ~-7 stained_hardened_clay 2},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~-3 ~-4 ~-1 ~-3 ~-3 ~-1 stained_hardened_clay 2},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~-3 ~-1 ~-2 ~-3 ~-1 ~-6 stained_hardened_clay 2},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~-2 ~-3 ~-1 ~-4 ~ ~-7 wool 12},Time:1,Riding:{id:FallingSand,Block:stone,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/gamerule commandBlockOutput false},Time:1}}}}}}}}}}}}}}}}}}}}}}}}}