SkyFall

summon FallingSand ~ ~1.5 ~ {Motion:[0.0d,-1.0d,0.0d],Time:1,DropItem:0,Block:redstone_block,Passengers:[
	{id:FallingSand,Time:1,DropItem:0,Block:activator_rail},
	{id:MinecartCommandBlock,Command:setblock ~2 ~-2 ~0 minecraft:repeating_command_block 5 replace {auto:1b,TrackOutput:0b,Command:/scoreboard objectives add GM4_SkyFall health}},
	{id:MinecartCommandBlock,Command:setblock ~3 ~-2 ~0 minecraft:chain_command_block 5 replace {auto:1b,TrackOutput:0b,Command:/scoreboard players tag @a[tag=GM4_InVoid,score_GM4_SkyFall=0,m=!3] add GM4_DoSkyFall {Dimension:1}}},
	{id:MinecartCommandBlock,Command:setblock ~4 ~-2 ~0 minecraft:chain_command_block 5 replace {auto:1b,TrackOutput:0b,Command:/effect @a[score_GM4_SkyFall_min=1,tag=GM4_DoSkyFall] minecraft:blindness 2 0 true}},
	{id:MinecartCommandBlock,Command:setblock ~5 ~-2 ~0 minecraft:chain_command_block 13 replace {auto:1b,TrackOutput:0b,Command:/execute @a[score_GM4_SkyFall_min=1,tag=GM4_DoSkyFall] ~ ~ ~ /spreadplayers ~ ~ 100 1000 false @p}},
	{id:MinecartCommandBlock,Command:setblock ~6 ~-2 ~0 minecraft:chain_command_block 13 replace {auto:1b,TrackOutput:0b,Command:/execute @a[score_GM4_SkyFall_min=1,tag=GM4_DoSkyFall] ~ ~ ~ /tp @p ~ ~300 ~}},
	{id:MinecartCommandBlock,Command:setblock ~7 ~-2 ~0 minecraft:chain_command_block 13 replace {auto:1b,TrackOutput:0b,Command:/scoreboard players tag @a[score_GM4_SkyFall_min=1,tag=GM4_DoSkyFall] remove GM4_DoSkyFall}},
	{id:MinecartCommandBlock,Command:setblock ~8 ~-2 ~0 minecraft:chain_command_block 5 replace {auto:1b,TrackOutput:0b,Command:/scoreboard players tag @a[tag=GM4_InVoid,score_GM4_SkyFall_min=1] remove GM4_InVoid}},
	{id:MinecartCommandBlock,Command:setblock ~9 ~-2 ~0 minecraft:chain_command_block 5 replace {auto:1b,TrackOutput:0b,Command:/execute @a[tag=!GM4_InVoid,m=!1] ~ ~ ~ /scoreboard players tag @p[dy=-960,y=-64,tag=!GM4_InVoid,m=!1] add GM4_InVoid {Dimension:1}}},
	{id:MinecartCommandBlock,Command:setblock ~1 ~-2 ~ wall_sign 4},
	{id:MinecartCommandBlock,Command:"blockdata ~1 ~-2 ~ {Text1:\"{\\\"text\\\":\\\"\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"tellraw @p {\\\\\\\"text\\\\\\\":\\\\\\\"[GM4] SkyFall v2.1 Click for Commands, Updates & Info\\\\\\\",\\\\\\\"color\\\\\\\":\\\\\\\"aqua\\\\\\\",\\\\\\\"clickEvent\\\\\\\":{\\\\\\\"action\\\\\\\":\\\\\\\"open_url\\\\\\\",\\\\\\\"value\\\\\\\":\\\\\\\"http://gamemode4.wikia.com/wiki/Thread:17242\\\\\\\"}}\\\"}}\",Text2:\"{\\\"text\\\":\\\"SkyFall\\\"}\",Text3:\"{\\\"text\\\":\\\"Click for info\\\"}\"}"},
	{id:MinecartCommandBlock,Command:"summon ArmorStand ~2 ~-1.9 ~ {CustomName:GM4_skyFall,Tags:[\"2.1\",GM4,],NoGravity:1b}"},
	{id:MinecartCommandBlock,Command:kill @e[type=MinecartCommandBlock,r=0]}
]}