Jellyfish | Minecraft | 1 Command

/summon FallingSand ~ ~1 ~ {Block:"redstone_block",Time:3,Passengers:[{id:"FallingSand",Block:"activator_rail",Time:3,Passengers:[{id:"MinecartCommandBlock",Command:/gamerule commandBlockOutput false},{id:"MinecartCommandBlock",Command:/fill ~3 ~-2 ~-1 ~6 ~4 ~1 minecraft:stained_hardened_clay 10 hollow},{id:"MinecartCommandBlock",Command:/fill ~3 ~-1 ~-1 ~6 ~3 ~1 minecraft:stained_glass 2 replace stained_hardened_clay},{id:"MinecartCommandBlock",Command:/scoreboard objectives add JellCount dummy},{id:"MinecartCommandBlock",Command:/scoreboard objectives add PackTimer dummy},{id:"MinecartCommandBlock",Command:/summon FallingSand ~4 ~-1 ~ {Block:repeating_command_block,Data:1,TileEntityData:{auto:1b,Command:/scoreboard players add Jellyfish PackTimer 1},Time:1,DropItem:0,Passengers:[{id:"FallingSand",Block:chain_command_block,Data:1,TileEntityData:{Command:/scoreboard players test Jellyfish PackTimer 20},Time:1,DropItem:0,Passengers:[{id:"FallingSand",Block:chain_command_block,Data:9,TileEntityData:{Command:/scoreboard players set Jellyfish PackTimer 0},Time:1,DropItem:0,Passengers:[{id:"FallingSand",Block:repeating_command_block,Data:9,TileEntityData:{auto:1b,Command:/scoreboard players set JellCount JellCount 0},Time:1,DropItem:0,Passengers:[{id:"FallingSand",Block:chain_command_block,Data:5,TileEntityData:{Command:/execute @e[type=Squid,tag=!MakeJell] ~ ~ ~ scoreboard players add JellCount JellCount 1},Time:1,DropItem:0}]}]}]}]}},{id:"MinecartCommandBlock",Command:/summon FallingSand ~5 ~-1 ~ {Block:stained_hardened_clay,Data:10,Time:1,DropItem:0,Passengers:[{id:"FallingSand",Block:chain_command_block,Data:0,TileEntityData:{Command:/effect @e[tag=Jellyfish] minecraft:invisibility 100 1 true},Time:1,DropItem:0,Passengers:[{id:"FallingSand",Block:chain_command_block,Data:8,TileEntityData:{Command:/scoreboard players tag @e[c=7,tag=!MakeJell,type=Squid] add MakeJell},Time:1,DropItem:0,Passengers:[{id:"FallingSand",Block:chain_command_block,Data:8,TileEntityData:{Command:/execute @r[tag=!MakeJell,type=Squid] ~ ~ ~ summon Zombie ~ ~ ~ {CustomName:"Jellyfish",CustomNameVisible:1,Tags:["Jellyfish"],IsVillager:0,IsBaby:1,ArmorItems:[{},{},{id:stick,Count:1,tag:{AttributeModifiers:[{AttributeName:"generic.maxHealth",Name:"generic.maxHealth",Amount:-2,Operation:0,UUIDLeast:623545,UUIDMost:862387,Slot:"offhand"},{AttributeName:"generic.movementSpeed",Name:"generic.movementSpeed",Amount:.05,Operation:0,UUIDLeast:247512,UUIDMost:939034,Slot:"offhand"},{AttributeName:"generic.attackDamage",Name:"generic.attackDamage",Amount:5,Operation:0,UUIDLeast:409965,UUIDMost:161143,Slot:"mainhand"},{AttributeName:"generic.attackSpeed",Name:"generic.attackSpeed",Amount:-1,Operation:0,UUIDLeast:603022,UUIDMost:125876,Slot:"mainhand"}],display:{Name:"Jellyfish Tentacle",Lore:[Tick tickle tickle!!]}}},{id:stained_hardened_clay,Damage:6,Count:1}],ArmorDropChances:[0.085F,0.085F,0.1F,0.0F],DeathLootTable:"",HandItems:[{id:stick,Count:1,tag:{ench:[{id:16,lvl:7}]}},{}],HandDropChances:[0.0F,0.40F]}},Time:1,DropItem:0,Passengers:[{id:"FallingSand",Block:chain_command_block,Data:0,TileEntityData:{Command:/scoreboard players test JellCount JellCount 7},Time:1,DropItem:0}]}]}]}]}},{id:"MinecartCommandBlock",Command:setblock ~2 ~1 ~ wall_sign 4 0 {Text1:"{\\\"text\\\":\\\"click here\\\",\\\"color\\\":\\\"dark_red\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"/particle explode ~2 ~-.5 ~ 1.25 1.25 1 .01 75 normal\\\"}}",Text2:"{\\\"text\\\":\\\"to remove\\\",\\\"color\\\":\\\"dark_red\\\"}",Text3:"{\\\"text\\\":\\\"this machine\\\",\\\"color\\\":\\\"dark_red\\\"}",Text4:"{\\\"text\\\":\\\"\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"fill ~ ~-3 ~-1 ~4 ~3 ~1 air\\\"}}"}},{id:"MinecartCommandBlock",Command:/setblock ~ ~1 ~ command_block 1 0 {auto:1b,Command:fill ~ ~ ~ ~ ~-2 ~ air}},{id:"MinecartCommandBlock",Command:kill @e[r=2,type=MinecartCommandBlock]}]}]}