Freeze the Nether (Nether 2)

/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 ~4 ~ {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=20] ~ ~ ~ fill ~10 ~10 ~10 ~-10 ~-10 ~-10 obsidian 0 replace lava 0},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard players set @e[type=Item] Snow 4 {Item:{id:minecraft:arrow}}},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=-22,ry=22] ~ ~ ~ summon Snowball ~ ~1 ~0.7 {Motion:[0.0,0.1,1.0],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 ice 0 replace glowstone 0},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 @a[score_Snow_min=6] ~ ~ ~ entitydata @e[type=ThrownPotion,r=2] {CustomName:LiquidNitrogen}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[name=LiquidNitrogen] ~ ~ ~ particle magicCrit ~ ~ ~ 0.1 0.1 0.1 0.1 2},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard players set @e[name=Dinnerbone,type=Skeleton,score_Timer_min=50] Timer 0},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard players set @e[name=Death] Snow 3 {OnGround:1b}},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:effect @e[name=Dinnerbone,type=Skeleton] 14 2 0 true},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @a[score_Snow_min=2] ~ ~ ~ entitydata @e[type=Snowball,r=2] {CustomName:SubSnowball}},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 quartz_ore 0 replace packed_ice 0},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=-112,ry=-68] ~ ~ ~ summon Snowball ~0.7 ~1 ~ {Motion:[1.0,0.1,0.0],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 packed_ice 0 replace quartz_ore 0},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard players set @e[type=Item] Snow 4 {Item:{id:minecraft:bone}}},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:execute @e[name=SubSnowball,score_Timer_min=3] ~ ~ ~ execute @e[r=3,type=!Snowball] ~ ~ ~ playsound mob.silverfish.say @a ~ ~ ~ 1 0},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[name=Death,score_Snow_min=3,score_Snow=3] ~ ~ ~ kill @e[type=ArmorStand,r=3]},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard players set @a[score_Snow_min=8] Snow 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] ~ ~ ~ execute @e[type=Fireball,rm=1,r=3] ~ ~ ~ summon ArmorStand ~ ~ ~ {CustomName:Icy,Invulnerable:1,NoGravity:1,Invisible:1,Marker:1}},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 glowstone 0 replace ice 0},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[name=Dinnerbone,type=Skeleton] ~ ~ ~ tp @e[name=GolemHead,r=0,c=1] @e[name=Dinnerbone,type=Skeleton,r=0,c=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] ~ ~ ~ scoreboard players add @e[type=PigZombie,r=10] Timer 1},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=Item,score_Snow_min=5,score_Snow=5] ~ ~ ~ particle magicCrit ~ ~ ~ 0.1 0.1 0.1 0.1 2},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=-67,ry=-23] ~ ~ ~ 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:kill @e[name=Icy,score_Timer_min=3000]},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[score_Snow_min=2,name=LiquidNitrogen] ~ ~ ~ setblock ~ ~ ~ water},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard players add @e[name=LiquidNitrogen] Snow 1},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @a[score_Timer_min=499] ~ ~ ~ entitydata @r[type=Item,score_Snow_min=1,score_Snow=1] {Item:{id:minecraft:snowball,Count:1b,Damage:0s,tag:{ench:[{id:3,lvl:1}],HideFlags:63,display:{Name:Subzero Snowball,Lore:["This snowball seems","somewhat special"]}}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[name=Icy,score_Timer_min=1,score_Timer=5] ~ ~ ~ playsound mob.zombie.remedy @a ~ ~ ~ 2},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 @e[name=SubSnowball,score_Timer_min=5] ~ ~ ~ effect @e[r=2] slowness 5 5 true},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 snow 0 replace netherrack 0},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[name=Icy,score_Timer_min=2995] ~ ~ ~ playsound random.fizz @a ~ ~ ~ 2 2},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:execute @a ~ ~ ~ execute @e[r=20,name=Dinnerbone,type=Skeleton,score_Timer_min=49,rym=113,ry=157] ~ ~ ~ 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:effect @e[type=PigZombie,score_Timer_min=1] 14 9999 0 true},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=Item,score_Snow_min=5,score_Snow=5] ~ ~ ~ detect ~ ~-1 ~ cauldron 3 entitydata @e[type=Item,score_Snow_min=5,score_Snow=5,r=1,c=1] {Item:{id:potion,Count:1,Damage:16450,tag:{display:{Name:Liquid Nitrogen,Lore:["A substance cold enough","to be used in the Nether"]},HideFlags:63,CustomPotionEffects:[{Id:2,Amplifier:5,Duration:100},{Id:20,Amplifier:0,Duration:100}]}}}},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 set @a[score_Timer_min=500] Timer 0},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[name=Icy,score_Timer_min=1,score_Timer=5] ~ ~ ~ effect @a[r=40] night_vision 1 0 true},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[name=LiquidNitrogen] ~ ~ ~ detect ~ ~-1 ~ air 0 scoreboard players set @e[r=1,c=1,name=LiquidNitrogen] Snow 0},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:scoreboard players add @e[name=Icy] Timer 1},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 air 0 replace fire 0},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[name=Dinnerbone,type=Skeleton] ~ ~ ~ tp @e[name=GolemTop,r=0,c=1] @e[name=Dinnerbone,type=Skeleton,r=0,c=1]},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 ~-1 ~ redstone_block},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:setblock ~3 ~-3 ~-1 command_block 0 replace {Command:fill ~ ~ ~1 ~6 ~3 ~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 ~3 ~-1 redstone_block 0 replace stone}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~2 ~-1 ~-2 ~10 ~2 ~2 stained_glass 3 replace packed_ice},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~3 ~ ~-1 ~9 ~6 ~1 air 0 replace packed_ice},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~2 ~ ~-2 ~10 ~5 ~2 packed_ice},Time:1,Riding:{id:FallingSand,Block:stone,Time:1}}}}}}}}}}}}}}}}}}}}}}}}}}