summon falling_block ~ ~1 ~ {Block:stone,Time:1,Passengers:[{id:falling_block,Block:redstone_block,Time:1,Passengers:[{id:falling_block,Block:activator_rail,Time:1,Passengers:[{id:commandblock_minecart,Command:gamerule commandBlockOutput false},{id:commandblock_minecart,Command:fill ~2 ~-3 ~-1 ~8 ~4 ~1 stained_glass 9 hollow},{id:commandblock_minecart,Command:fill ~2 ~-2 ~-1 ~8 ~3 ~1 stained_glass 0 0 stained_glass},{id:commandblock_minecart,Command:setblock ~1 ~ ~ wall_sign 4 0 {Text1:"{\\\"text\\\":\\\"========\\\",\\\"color\\\":\\\"dark_red\\\"}",Text2:"{\\\"text\\\":\\\"[Click Here]\\\",\\\"color\\\":\\\"red\\\",\\\"bold\\\":true}",Text3:"{\\\"text\\\":\\\"To Self Destruct\\\",\\\"color\\\":\\\"red\\\"}",Text4:"{\\\"text\\\":\\\"========\\\",\\\"color\\\":\\\"dark_red\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"fill ~ ~-3 ~-1 ~7 ~4 ~1 air\\\"}}"}},{id:commandblock_minecart,Command:setblock ~1 ~1 ~ wall_sign 4 0 {Text1:"{\\\"text\\\":\\\"Sledding\\\",\\\"color\\\":\\\"red\\\",\\\"bold\\\":true}",Text2:"{\\\"text\\\":\\\"In One Command\\\",\\\"color\\\":\\\"dark_green\\\"}",Text3:"{\\\"text\\\":\\\"========\\\",\\\"color\\\":\\\"gold\\\"}",Text4:"{\\\"text\\\":\\\"By SirStickyNote\\\",\\\"color\\\":\\\"dark_gray\\\"}"}},{id:commandblock_minecart,Command:fill ~3 ~-2 ~ ~7 ~3 ~ chain_command_block 5},{id:commandblock_minecart,Command:fill ~7 ~3 ~ ~5 ~3 ~ chain_command_block 4},{id:commandblock_minecart,Command:setblock ~7 ~2 ~ chain_command_block 1},{id:commandblock_minecart,Command:setblock ~3 ~1 ~ chain_command_block 1},{id:commandblock_minecart,Command:fill ~7 ~1 ~ ~4 ~1 ~ chain_command_block 4},{id:commandblock_minecart,Command:setblock ~7 ~ ~ chain_command_block 1},{id:commandblock_minecart,Command:setblock ~3 ~-1 ~ chain_command_block 1},{id:commandblock_minecart,Command:fill ~7 ~-1 ~ ~4 ~-1 ~ chain_command_block 4},{id:commandblock_minecart,Command:setblock ~7 ~-2 ~ chain_command_block 1},{id:commandblock_minecart,Command:setblock ~3 ~-2 ~ repeating_command_block 5},{id:commandblock_minecart,Command:blockdata ~5 ~3 ~ {auto:1,Command:/scoreboard players remove @a[score_Shift_min=1] Shift 1}},{id:commandblock_minecart,Command:blockdata ~6 ~3 ~ {auto:1,Command:/execute @a[rx=-90,rxm=-90,score_Shift_min=1] ~ ~ ~ kill @e[type=armor_stand,tag=SledStand,r=2] }},{id:commandblock_minecart,Command:blockdata ~7 ~3 ~ {auto:1,Command:/execute @a[rx=-90,rxm=-90,score_Shift_min=1] ~ ~ ~ tp @e[type=horse,tag=Sled,r=2] ~ ~-500 ~}},{id:commandblock_minecart,Command:blockdata ~7 ~2 ~ {auto:1,Command:/execute @a[rx=-90,rxm=-90,score_Shift_min=1] ~ ~ ~ execute @e[type=horse,tag=Sled,r=2] ~ ~ ~ /particle snowshovel ~ ~2 ~ 0 0.5 0 0.1 1000}},{id:commandblock_minecart,Command:blockdata ~6 ~2 ~ {auto:1,Command:"/execute @a[rx=-90,rxm=-90,score_Shift_min=1] ~ ~ ~ execute @e[type=horse,tag=Sled,r=2] ~ ~ ~ /summon item ~ ~2 ~ {Item:{id:\\\"minecraft:diamond_hoe\\\",Count:1,Damage:1561s,tag:{display:{Name:\\\"Sled\\\",Lore:[\\\"Press shift and look down to enable\\\"]},Unbreakable:1b}}}"}},{id:commandblock_minecart,Command:blockdata ~5 ~2 ~ {auto:1,Command:/entitydata @e[score_SledSpeed=0] {Attributes:[{Name:generic.movementSpeed,Base:0.01}]}}},{id:commandblock_minecart,Command:blockdata ~4 ~2 ~ {auto:1,Command:/scoreboard players set @e[score_SledSpeed_min=110] SledSpeed 110}},{id:commandblock_minecart,Command:blockdata ~3 ~2 ~ {auto:1,Command:/entitydata @e[score_SledSpeed_min=100,score_SledSpeed=105] {Attributes:[{Name:generic.movementSpeed,Base:0.5}]}}},{id:commandblock_minecart,Command:blockdata ~3 ~1 ~ {auto:1,Command:/entitydata @e[score_SledSpeed_min=75,score_SledSpeed=80] {Attributes:[{Name:generic.movementSpeed,Base:0.3}]}}},{id:commandblock_minecart,Command:blockdata ~4 ~1 ~ {auto:1,Command:/entitydata @e[score_SledSpeed_min=55,score_SledSpeed=60] {Attributes:[{Name:generic.movementSpeed,Base:0.2}]}}},{id:commandblock_minecart,Command:blockdata ~5 ~1 ~ {auto:1,Command:/entitydata @e[score_SledSpeed_min=25,score_SledSpeed=30] {Attributes:[{Name:generic.movementSpeed,Base:0.1}]}}},{id:commandblock_minecart,Command:blockdata ~6 ~1 ~ {auto:1,Command:/scoreboard players remove @e[score_SledSpeed_min=1] SledSpeed 2}},{id:commandblock_minecart,Command:blockdata ~7 ~1 ~ {auto:1,Command:/execute @e[tag=Sled] ~ ~ ~ detect ~ ~-0.1 ~ air 0 /scoreboard players add @e[tag=Sled,r=0,c=1] SledSpeed 6}},{id:commandblock_minecart,Command:blockdata ~7 ~ ~ {auto:1,Command:/execute @e[tag=Sled] ~ ~ ~ /teleport @e[tag=SledStand,r=6,c=1] ~ ~0.5 ~ ~180 ~}},{id:commandblock_minecart,Command:blockdata ~6 ~ ~ {auto:1,Command:"/replaceitem entity @a[rx=90,rxm=90,score_SledHold_min=1,score_Shift_min=1] slot.weapon.mainhand minecraft:air"}},{id:commandblock_minecart,Command:blockdata ~5 ~ ~ {auto:1,Command:"/execute @a[rx=90,rxm=90,score_SledHold_min=1,score_Shift_min=1] ~ ~ ~ /summon minecraft:armor_stand ~ ~ ~ {Marker:1b,Invisible:1b,NoGravity:1b,Tags:[SledStand],ArmorItems:[0:{},1:{},2:{},3:{id:\\\"diamond_hoe\\\",Count:1b,Damage:1561s}]}"}},{id:commandblock_minecart,Command:blockdata ~4 ~ ~ {auto:1,Command:"/execute @a[rx=90,rxm=90,score_SledHold_min=1,score_Shift_min=1] ~ ~ ~ /summon horse ~ ~ ~ {NoAI:1,CustomName:\\\"Sled\\\",CustomNameVisible:1,Tags:[\\\"Sled\\\"],SaddleItem:{id:\\\"minecraft:saddle\\\",Count:1b},Variant:0,Tame:1,Attributes:[{Name:generic.maxHealth,Base:100},{Name:generic.movementSpeed,Base:0.01},{Name:horse.jumpStrength,Base:0}],Health:100.0f,PersistenceRequired:1,Silent:1,ActiveEffects:[{Id:14,Amplifier:0,Duration:20000000,ShowParticles:0b}]}"}},{id:commandblock_minecart,Command:blockdata ~3 ~ ~ {auto:1,Command:/scoreboard players remove @a[score_SledHold_min=1] SledHold 1}},{id:commandblock_minecart,Command:blockdata ~3 ~-1 ~ {auto:1,Command:"/scoreboard players set @a SledHold 2 {SelectedItem:{id:\\\"minecraft:diamond_hoe\\\",tag:{display:{Lore:[\\\"Press shift and look down to enable\\\"]}}}}"}},{id:commandblock_minecart,Command:blockdata ~4 ~-1 ~ {auto:1,Command:execute @e[tag=Planks16] ~ ~ ~ execute @e[r=1,tag=Iron4] ~ ~ ~ /kill @e[r=1,type=item]}},{id:commandblock_minecart,Command:blockdata ~5 ~-1 ~ {auto:1,Command:"execute @e[tag=Planks16] ~ ~ ~ execute @e[r=1,tag=Iron4] ~ ~ ~ /summon item ~ ~2 ~ {Item:{id:\\\"minecraft:diamond_hoe\\\",Count:1,Damage:1561s,tag:{display:{Name:\\\"Sled\\\",Lore:[\\\"Press shift and look down to enable\\\"]},Unbreakable:1b}}}"}},{id:commandblock_minecart,Command:blockdata ~6 ~-1 ~ {auto:1,Command:execute @e[tag=Planks16] ~ ~ ~ execute @e[r=1,tag=Iron4] ~ ~ ~ /particle snowshovel ~ ~1 ~ 0 0 0 0.1 1000}},{id:commandblock_minecart,Command:blockdata ~7 ~-1 ~ {auto:1,Command:"/scoreboard players tag @e[type=item] add Iron4 {Item:{id:\\\"minecraft:iron_ingot\\\",Count:4b}}"}},{id:commandblock_minecart,Command:blockdata ~7 ~-2 ~ {auto:1,Command:"/scoreboard players tag @e[type=item] add Planks16 {Item:{id:\\\"minecraft:planks\\\",Count:16b}}"}},{id:commandblock_minecart,Command:blockdata ~6 ~-2 ~ {auto:1,Command:/scoreboard objectives add SledMove dummy}},{id:commandblock_minecart,Command:blockdata ~5 ~-2 ~ {auto:1,Command:/scoreboard objectives add SledSpeed dummy}},{id:commandblock_minecart,Command:blockdata ~4 ~-2 ~ {auto:1,Command:/scoreboard objectives add SledHold dummy}},{id:commandblock_minecart,Command:blockdata ~3 ~-2 ~ {auto:1,Command:/scoreboard objectives add Shift stat.sneakTime}},{id:commandblock_minecart,Command:setblock ~ ~ ~1 command_block 0 0 {Command:fill ~ ~-3 ~-1 ~ ~ ~ air}},{id:commandblock_minecart,Command:setblock ~ ~-1 ~1 redstone_block},{id:commandblock_minecart,Command:kill @e[type=commandblock_minecart,r=1]}]}]}]}