command /pvp <text>:
    permission: pvp.*
    permission message: &cNie posiadasz permisji &2pvp.*
    trigger:  
        if arg is "on":   
            Set {pvp} to true       
            Broadcast "&2Pvp zostalo wlaczone"  
        else if arg is "off":        
            Set {pvp} to false    
            Broadcast "&4Pvp zostalo wylaczone"
on damage:  
    if {pvp} is false:  
        Cancel event    
            Send "&3Admin musi wlaczyc pvp!" To attacker