variables:
	{moby::%player%} = 0
on death:
	if attacker is a player:
    	if victim is a zombie:
        	add 1 to {moby::%attacker%}
        if victim is a creeper:
        	add 1 to {moby::%attacker%}
    	if {moby::%attacker%} is <= 10:
        	give 1 diamond to attacker
        if {moby::%attacker%} is <= 20:
        	give 2 diamond to attacker
        
command /licznik:
	trigger:
    	send "Zabite moby: %{moby::%player%}%" to player