RANDOMEANDO EVERYWHERE
¡Todo del canal!!

Comando 1.9:
summon FallingSand ~ ~1 ~ {Block:dirt,Time:1,Passengers:[{id:FallingSand,Block:redstone_block,Time:1,Passengers:[{id:FallingSand,Block:activator_rail,Time:1,Passengers:[{id:MinecartCommandBlock,Command:gamerule commandBlockOutput false},{id:MinecartCommandBlock,Command:"fill ~2 ~-3 ~-2 ~8 ~ ~2 stained_hardened_clay 3 hollow"},{id:MinecartCommandBlock,Command:"fill ~2 ~-2 ~-2 ~8 ~-1 ~2 stained_glass 3 replace stained_hardened_clay"},{id:MinecartCommandBlock,Command:"/scoreboard objectives add morph dummy"},{id:MinecartCommandBlock,Command:"/scoreboard objectives add usetag stat.useItem.minecraft.golden_shovel"},{id:MinecartCommandBlock,Command:"/scoreboard teams add noCollide"},{id:MinecartCommandBlock,Command:setblock ~1 ~-2 ~ wall_sign 4 replace {Text2:"{\\\"text\\\":\\\"Morphing\\\",\\\"color\\\":\\\"gold\\\"}",Text3:"{\\\"text\\\":\\\"By Code202\\\",\\\"color\\\":\\\"dark_blue\\\"}"}},{id:MinecartCommandBlock,Command:setblock ~1 ~-1 ~ wall_sign 4 replace {Text2:"{\\\"text\\\":\\\"Destroy\\\",\\\"color\\\":\\\"red\\\"}",Text3:"{\\\"text\\\":\\\"Machine\\\",\\\"color\\\":\\\"red\\\"}",Text4:"{\\\"text\\\":\\\"\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"fill ~ ~-2 ~-2 ~7 ~1 ~2 air\\\"}}"}},{id:MinecartCommandBlock,Command:"scoreboard objectives add xkNFag_I dummy"},{id:MinecartCommandBlock,Command:setblock ~3 ~-1 ~ chain_command_block 5 replace {auto:1,Command:"execute @e[score_xkNFag_I_min=23,score_xkNFag_I=23] ~ ~ ~ execute @e[score_xkNFag_I_min=24,score_xkNFag_I=24,r=1] ~ ~ ~ kill @e[type=Item,r=3,score_xkNFag_I_min=23,score_xkNFag_I=25]"}},{id:MinecartCommandBlock,Command:setblock ~3 ~-1 ~1 chain_command_block 2 replace {auto:1,Command:"execute @e[score_xkNFag_I_min=23,score_xkNFag_I=23] ~ ~ ~ execute @e[score_xkNFag_I_min=24,score_xkNFag_I=24,r=1] ~ ~ ~ summon Item ~ ~0.5 ~ {Item:{id:minecraft:golden_shovel,tag:{display:{Name:\\\"Morph Wand\\\",Lore:[\\\"Morph into a mob!\\\"]},ench:[{id:0,lvl:1}],HideFlags:7,Unbreakable:1},Count:1}}"}},{id:MinecartCommandBlock,Command:setblock ~4 ~-1 ~1 chain_command_block 4 replace {auto:1,Command:"scoreboard players set @e xkNFag_I 24 {Item:{id:minecraft:end_crystal},OnGround:1b}"}},{id:MinecartCommandBlock,Command:setblock ~5 ~-1 ~1 chain_command_block 4 replace {auto:1,Command:"scoreboard players set @e xkNFag_I 23 {Item:{id:minecraft:blaze_rod},OnGround:1b}"}},{id:MinecartCommandBlock,Command:setblock ~6 ~-1 ~1 chain_command_block 4 replace {auto:1,Command:"/entitydata @e[name=Morph] {Invulnerable:0,NoGravity:1,NoAI:1}"}},{id:MinecartCommandBlock,Command:setblock ~7 ~-1 ~1 chain_command_block 4 replace {auto:1,Command:"/scoreboard teams join noCollide @e[name=Morph]"}},{id:MinecartCommandBlock,Command:setblock ~7 ~-2 ~1 chain_command_block 1 replace {auto:1,Command:"/effect @e[name=Morph] jump_boost 1 255 true"}},{id:MinecartCommandBlock,Command:setblock ~6 ~-2 ~1 chain_command_block 5 replace {auto:1,Command:"/entitydata @e[name=Morph] {Attributes:[{Name:\\\"generic.knockbackResistance\\\",Base:1f}]}"}},{id:MinecartCommandBlock,Command:setblock ~5 ~-2 ~1 chain_command_block 5 replace {auto:1,Command:"/effect @e[name=Morph] resistance 1 100 true"}},{id:MinecartCommandBlock,Command:setblock ~4 ~-2 ~1 chain_command_block 5 replace {auto:1,Command:"/execute @e[name=Morph] ~ ~ ~ /effect @a[r=3] invisibility 1 1 true"}},{id:MinecartCommandBlock,Command:setblock ~3 ~-2 ~1 chain_command_block 5 replace {auto:1,Command:"/execute @e[name=Morph] ~ ~ ~ /tp @e[name=Morph,r=0] @a[c=1]"}},{id:MinecartCommandBlock,Command:setblock ~3 ~-2 ~ chain_command_block 3 replace {auto:1,Command:"/scoreboard players set @a usetag 0"}},{id:MinecartCommandBlock,Command:setblock ~4 ~-2 ~ chain_command_block 4 replace {auto:1,Command:"/scoreboard players set @a morph 0"}},{id:MinecartCommandBlock,Command:setblock ~5 ~-2 ~ chain_command_block 4 replace {auto:1,Command:"/execute @e[score_usetag_min=1] ~ ~ ~ /entitydata @e[type=!Player,r=5,c=1] {CustomName:Morph}"}},{id:MinecartCommandBlock,Command:setblock ~6 ~-2 ~ chain_command_block 4 replace {auto:1,Command:"#youfoundaneasteregg"}},{id:MinecartCommandBlock,Command:setblock ~7 ~-2 ~ chain_command_block 4 replace {auto:1,Command:"/execute @a[score_morph_min=1,score_usetag_min=1] ~ ~ ~ /kill @e[type=Item,r=3]"}},{id:MinecartCommandBlock,Command:setblock ~7 ~-2 ~-1 chain_command_block 3 replace {auto:1,Command:"/execute @a[score_morph_min=1,score_usetag_min=1] ~ ~ ~ /kill @e[name=Morph,c=1,r=3]"}},{id:MinecartCommandBlock,Command:setblock ~6 ~-2 ~-1 chain_command_block 5 replace {auto:1,Command:"/execute @a[score_morph_min=1,score_usetag_min=1] ~ ~ ~ /tellraw @a[rm=1] [\\\"\\\",{\\\"selector\\\":\\\"@p\\\"},{\\\"text\\\":\\\" has morphed into another mob!\\\",\\\"color\\\":\\\"gold\\\"}]"}},{id:MinecartCommandBlock,Command:setblock ~5 ~-2 ~-1 chain_command_block 5 replace {auto:1,Command:"/execute @a[score_morph_min=1,score_usetag_min=1] ~ ~ ~ /tellraw @p {\\\"text\\\":\\\"You have morphed into another mob!\\\",\\\"color\\\":\\\"gold\\\"}"}},{id:MinecartCommandBlock,Command:setblock ~4 ~-2 ~-1 chain_command_block 5 replace {auto:1,Command:"/scoreboard players set @a morph 1 {SelectedItem:{id:minecraft:golden_shovel,tag:{display:{Name:\\\"Morph Wand\\\"}}}}"}},{id:MinecartCommandBlock,Command:setblock ~3 ~-2 ~-1 repeating_command_block 5 replace {auto:1,Command:"/scoreboard teams option noCollide collisionRule never"}},{id:MinecartCommandBlock,Command:setblock ~ ~ ~1 command_block 0 replace {Command:fill ~ ~-3 ~-1 ~ ~ ~ air}},{id:MinecartCommandBlock,Command:setblock ~ ~-1 ~1 redstone_block},{id:MinecartCommandBlock,Command:kill @e[type=MinecartCommandBlock,r=1]}]}]}]}

Comando echo por:
Code202