
GRAPPLING HOOK:
/tp @p @e[type=Arrow,r=200]

/testfor @e[type=Arrow,r=200] {inGround:1b}




SHOP DIFFICULTY:
/xp <amount> [player]
/clear @p minecraft:emerald 0 2

"/clear @p" - Calls the command, targeting the player
"minecraft:emerald" - What item to remove from players inventory.
"0" - Damage value (in this case 0)
"2" - How many emeralds to remove, i.e the price of the item.

/gamemode 1 @a

0 = Survival
1 = Creative
2 = Adventure




TIME:
In the Chat:
/scoreboard objectives add counter dummy .

/scoreboard objectives setdisplay sidebar counter

command block:
/scoreboard players add Day counter 1




SMITED:
/scoreboard objectives add Smited totalKillCount Smited
/scoreboard objectives setDisplay list Smited




SWORD CLOCK:
http://imgur.com/a/4GOTk#1