Gamemode 4 Drinkers Delight Module (1.9)

summon FallingSand ~ ~.5 ~
 {Block:minecraft:activator_rail,DropItem:0,Time:1,
Passengers:[{id:MinecartCommandBlock,Command:gamerule CommandBlockOutput false},

{id:MinecartCommandBlock,Command:summon FallingSand ~2 ~1.5 ~ {Time:1,Block:redstone_block}},
{id:MinecartCommandBlock,Command:setblock ~2 ~-1 ~ command_block 5 _ {TrackOutput:0b,auto:0b,Command:summon FallingSand ~ ~.5 ~ {Block:redstone_block,Motion:[0.0,0.55,0.0]}}},
{id:MinecartCommandBlock,Command:setblock ~3 ~-1 ~ chain_command_block 5 _ {TrackOutput:0b,auto:1b,Command:/scoreboard objectives add GM4_potDrink stat.useItem.minecraft.potion}},
{id:MinecartCommandBlock,Command:setblock ~4 ~-1 ~ chain_command_block 5 _ {TrackOutput:0b,auto:1b,Command:/scoreboard objectives add GM4_potID dummy}},
{id:MinecartCommandBlock,Command:setblock ~5 ~-1 ~ chain_command_block 5 _ {TrackOutput:0b,auto:1b,Command:/scoreboard players add @a[tag=!GM4_potHeld] GM4_potID 0}},
{id:MinecartCommandBlock,Command:setblock ~6 ~-1 ~ chain_command_block 5 _ {TrackOutput:0b,auto:1b,Command:/scoreboard players set @a[score_GM4_potDrink_min=1,tag=!GM4_potHeld] GM4_potDrink 0}},
{id:MinecartCommandBlock,Command:setblock ~7 ~-1 ~ chain_command_block 5 _ {TrackOutput:0b,auto:1b,Command:/scoreboard players tag @a[score_GM4_potID=0,tag=GM4_potHeld] remove GM4_potHeld}},
{id:MinecartCommandBlock,Command:setblock ~8 ~-1 ~ chain_command_block 5 _ {TrackOutput:0b,auto:1b,Command:/scoreboard players set @a[score_GM4_potID_min=1,tag=GM4_potHeld] GM4_potID 0}},
{id:MinecartCommandBlock,Command:setblock ~9 ~-1 ~ chain_command_block 5 _ {TrackOutput:0b,auto:1b,Command:/scoreboard players tag @a[score_GM4_potID_min=1] add GM4_potHeld}},

{id:MinecartCommandBlock,Command:setblock ~1 ~-1 ~ wall_sign 4},
{id:MinecartCommandBlock,Command:"blockdata ~1 ~-1 ~ {Text2:\"{\\\"text\\\":\\\"D.D-lite\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"/tellraw @p [{\\\\\\\"text\\\\\\\":\\\\\\\"[GM4] Drinkers Delight Base V2.0 Click for Commands, Updates & Info. This is used for updating modules, the link will just send you to the blog post as a placeholder.\\\\\\\",\\\\\\\"color\\\\\\\":\\\\\\\"aqua\\\\\\\",\\\\\\\"clickEvent\\\\\\\":{\\\\\\\"action\\\\\\\":\\\\\\\"open_url\\\\\\\",\\\\\\\"value\\\\\\\":\\\\\\\"http://gamemode4.wikia.com/wiki/User_blog:Littleman9Mew2/Drinkers_Delight!_Custom_Potions!\\\\\\\"}}]\\\"}}\",Text3:\"{\\\"text\\\":\\\"Click For Info.\\\"}\"}"},
{id:MinecartCommandBlock,Command:tellraw @a {"text":"[L9M2] Thanks to Littleman9mew2 to make this 1-Click possible.","color":"green","underlined":"true"}},
{id:MinecartCommandBlock,Command:summon ArmorStand ~2 ~-1 ~ {CustomName:GM4_DrinkersDLite,NoGravity:1b,Tags:["2.0","GM4","L9M2"]}},
{id:MinecartCommandBlock,Command:kill @e[type=MinecartCommandBlock,r=1]}]}