Freeze the Nether (Nether 1)

/summon FallingSand ~ ~1 ~ {Block:redstone_block,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~ ~ ~1 ~ ~-23 ~1 redstone_block},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~ ~2 ~ ~ ~-24 ~1 air},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~3 ~-1 ~ {Block:command_block,Time:1,TileEntityData:{Command:fill ~ ~ ~-1 ~6 ~ ~1 packed_ice}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard objectives add Snow dummy},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard objectives add Timer dummy},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~4 ~-15 ~-1 {Block:packed_ice,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[name=Icy,score_Timer_min=1,score_Timer=5] ~ ~ ~ particle snowballpoof ~ ~ ~ 10 10 10 0.1 500},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[name=Icy,score_Timer_min=1,score_Timer=20] ~ ~ ~ fill ~10 ~10 ~10 ~-10 ~-10 ~-10 flowing_lava 0 replace cobblestone 0},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:effect @e[name=Dinnerbone,type=Skeleton] slowness 2 1 true},Time:1,}}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~5 ~-14 ~-1 {Block:packed_ice,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[name=Icy,score_Timer_min=2980] ~ ~ ~ particle largesmoke ~ ~ ~ 10 10 10 0.1 200},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard players set @a Snow 5 {SelectedItem:{id:"minecraft:potion",tag:{display:{Name:Liquid Nitrogen}}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @a ~ ~ ~ execute @e[r=20,name=Dinnerbone,type=Skeleton,score_Timer_min=49,rym=23,ry=67] ~ ~ ~ summon Snowball ~-0.7 ~1 ~0.7 {Motion:[-0.5,0.1,0.5],CustomName:SubSnowball}},Time:1,}}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~6 ~-13 ~-1 {Block:packed_ice,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=Item,score_Snow_min=5,score_Snow=5] ~ ~ ~ fill ~ ~-1 ~ ~ ~ ~ cauldron 0 replace cauldron 3},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard players add @e[name=Dinnerbone,type=Skeleton] Timer 1},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard players set @a Snow 1 {SelectedItem:{id:"minecraft:snowball",tag:{display:{Name:Subzero Snowball}}}}},Time:1,}}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~7 ~-12 ~-1 {Block:packed_ice,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @a ~ ~ ~ execute @e[r=20,name=Dinnerbone,type=Skeleton,score_Timer_min=49,rym=-157,ry=-113] ~ ~ ~ summon Snowball ~0.7 ~1 ~-0.7 {Motion:[0.5,0.1,-0.5],CustomName:SubSnowball}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[name=Icy,score_Timer_min=1,score_Timer=20] ~ ~ ~ fill ~10 ~10 ~10 ~-10 ~-10 ~-10 clay 0 replace soul_sand 0},Time:1,}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~8 ~-11 ~-1 {Block:packed_ice,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard players set @e[type=Item] Snow 1 {Item:{id:minecraft:snowball}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=PigZombie,score_Timer_min=2,score_Timer=2] ~ ~ ~ summon ArmorStand ~ ~ ~ {Invisible:1,CustomName:Death,Riding:{id:Skeleton,Pose:{Head:[180.0f,0.0f,0.0f]},DropChances:[0f,0.7f,0.5f,0.2f,0f],Equipment:[{},{id:prismarine_crystals,Damage:0,Count:1,tag:{display:{Name:Nitrogen Crystals}}},{id:prismarine_crystals,Damage:0,Count:1,tag:{display:{Name:Nitrogen Crystals}}},{id:prismarine_crystals,Damage:0,Count:1,tag:{display:{Name:Nitrogen Crystals}}},{id:skull,Damage:3,tag:{SkullOwner:{Id:"b1b51324-5760-47f0-a1ba-1bae05f0b761",Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvNWRkNmZlMjY3YTQxOGRjYzdmMzdhOGY3Njg1NWI1MzI4YjEzMDM4OTdiMzQyYTEwN2NmMTYyZjE0ZmUzZCJ9fX0="}]}}}}],CustomName:Dinnerbone,Silent:1,NoAI:0}}},Time:1,}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~9 ~-10 ~-1 {Block:packed_ice,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[name=SubSnowball] ~ ~ ~ particle magicCrit ~ ~ ~ 0.1 0.1 0.1 0.1 5},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=PigZombie,score_Timer_min=2,score_Timer=2] ~ ~ ~ summon ArmorStand ~ ~ ~ {Rotation:[-90.0f,0.0f],Pose:{Head:[180.0f,0.0f,0.0f],RightLeg:[180.0f,0.0f,0.0f],LeftLeg:[180.0f,0.0f,0.0f]},Equipment:[{},{},{},{},{id:skull,Damage:3,tag:{SkullOwner:{Id:"b1b51324-5760-47f0-a1ba-1bae05f0b761",Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvNWRkNmZlMjY3YTQxOGRjYzdmMzdhOGY3Njg1NWI1MzI4YjEzMDM4OTdiMzQyYTEwN2NmMTYyZjE0ZmUzZCJ9fX0="}]}}}}],Small:1,CustomName:GolemTop,NoBasePlate:1,Invulnerable:1}},Time:1,}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~4 ~-10 ~1 {Block:packed_ice,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[name=Icy,score_Timer_min=2990,score_Timer=3001] ~ ~ ~ fill ~10 ~10 ~10 ~-10 ~-10 ~-10 soul_sand 0 replace clay 0},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard players set @e[type=Item] Snow 5 {Item:{id:minecraft:prismarine_crystals,Count:4b,tag:{display:{Name:Nitrogen Crystals}}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @a ~ ~ ~ execute @e[r=20,name=Dinnerbone,type=Skeleton,score_Timer_min=49,rym=68,ry=112] ~ ~ ~ summon Snowball ~-0.7 ~1 ~ {Motion:[-1.0,0.1,0.0],CustomName:SubSnowball}},Time:1,}}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~5 ~-9 ~1 {Block:packed_ice,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[name=Death] ~ ~ ~ kill @e[score_Snow_min=4,score_Snow=4,r=4]},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard players add @a[score_Snow_min=5] Snow 1},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard players add @a Timer 1},Time:1,}}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~6 ~-8 ~1 {Block:packed_ice,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @a ~ ~ ~ execute @e[r=20,name=Dinnerbone,type=Skeleton,score_Timer_min=49,ry=-158,rym=158] ~ ~ ~ summon Snowball ~ ~1 ~-0.7 {Motion:[0.0,0.1,-1.0],CustomName:SubSnowball}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard players set @a[score_Snow_min=3,score_Snow=4] Snow 0},Time:1,}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~7 ~-7 ~1 {Block:packed_ice,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard players add @e[name=SubSnowball] Timer 1},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[name=Icy] ~ ~ ~ particle magicCrit ~ ~ ~ 10 10 10 0.1 5},Time:1,}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~8 ~-6 ~1 {Block:packed_ice,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard players add @a[score_Snow_min=1,score_Snow=4] Snow 1},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=PigZombie,score_Timer_min=2,score_Timer=2] ~ ~ ~ summon ArmorStand ~ ~ ~ {Pose:{RightArm:[0.0f,0.0f,45.0f],LeftArm:[0.0f,0.0f,-45.0f],LeftLeg:[180.0f,0.0f,0.0f],RightLeg:[180.0f,0.0f,0.0f]},Equipment:[{},{},{},{},{id:pumpkin}],ShowArms:1,Small:1,CustomName:GolemHead,NoBasePlate:1,Invulnerable:1}},Time:1,}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~9 ~-5 ~1 {Block:packed_ice,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:tp @e[type=PigZombie,score_Timer_min=3] ~ ~-200 ~},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[name=Icy,score_Timer_min=2990,score_Timer=3001] ~ ~ ~ fill ~10 ~10 ~10 ~-10 ~-10 ~-10 netherrack 0 replace snow 0},Time:1,}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:gamerule commandBlockOutput false},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~3 ~-4 ~ ~9 ~-2 ~ redstone_block},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:setblock ~3 ~-3 ~-1 command_block 0 replace {Command:fill ~ ~ ~1 ~6 ~2 ~1 stone 0 replace redstone_block}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:setblock ~3 ~-2 ~1 command_block 0 replace {Command:fill ~ ~ ~-1 ~6 ~2 ~-1 redstone_block 0 replace stone}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~2 ~-1 ~-2 ~10 ~1 ~2 stained_glass 3 replace packed_ice},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~3 ~ ~-1 ~9 ~5 ~1 air 0 replace packed_ice},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~2 ~ ~-2 ~10 ~4 ~2 packed_ice},Time:1,Riding:{id:FallingSand,Block:stone,Time:1}}}}}}}}}}}}}}}}}}}}}}}}}}