on rightclick:
    if player has a chest named "&6Szkatulka Testowa":
 
        remove 1 chest named "&6Szkatulka Testowa" from the player
        chance of 25%:
            give player 1 diamond sword of sharpness 7
        chance of 25%:
            give player 1 diamond pickaxe of efficiency 7
        chance of 25%:
            give player 1 diamond helmet of protection 6