on death of zombie or skeleton or creeper or slime or spider or enderman or cave spider:
    chance of 100%:
        drop 1 ender chest named "&6Skrzynia Potwora" at victim
        
        
            
on rightclick holding a ender chest:
    if name of player's tool is "&6Skrzynia Potwora":
        remove 1 ender chest named "&6Skrzynia Potwora" from player
        cancel event
        chance of 40%:
            add 10 cobblestone to player's inventory
            cancel event
            stop
        chance of 50%:
            add 5 cobblestone to player's inventory
            cancel event
            stop
        chance of 15%:
            add 5 iron ore to player's inventory
            cancel event
            stop
        chance of 15%:
            add 3 gold ore to player's inventory
            cancel event
            stop
        chance of 20%:
            add 1 paper named "&aLos &8/kolofortuny" to player's inventory
            cancel event
            stop
        chance of 7%:
            add 1 diamond to player's inventory
            cancel event
            stop
        chance of 0.75%:
            add 1 book named "&6Epicka Ksiega &8/EKsiega" to player's inventory
            cancel event
            stop
        chance of 100%:
            add 1 ender pearl to player's inventory
            cancel event
            stop