Drop Pickaxe

You could do this with worldguard I think... look at the wiki and see if there is an "on drop:" event.

 

Code (Text):

on drop of pickaxe:
  {droppick::%uuid of player%} is true:
    delete {droppick::%uuid of player%}
    stop
  cancel the event
  message "/droppick"

command droppick:
  trigger:
    if player's tool is not a pickaxe:
      message "You must hold the pickaxe"
      stop
    set {droppick::%uuid of player%} to true
    make player drop 1 of held item from his inventory

Requires TuSKe addon.

Or you can use this without addons

Code (Text):

on drop of pickaxe:
  {droppick::%uuid of player%} is true:
    delete {droppick::%uuid of player%}
    stop
  cancel the event
  message "/droppick"

command droppick:
  trigger:
    if player's tool is not a pickaxe:
      message "You must hold the pickaxe"
      stop
    set {droppick::%uuid of player%} to true
    drop player's tool
 

I have not tested either one.

 

i tested it and it worked.