Exc

Dzień dobry mam pytanie co jest w tym nie tak? co zrobic ,że ten excalibur z napisanym włascicielem i napisem ile graczy zabił dawał nam przy uderzeniu sile?

on death:
    if victim is a player:
        if attacker is a player:
            if attacker's tool is diamond sword:
                if name of attacker's tool is "&eExcalibur":
                    add 1 to {excalibur.%attacker%}
                    stop
variables:
        {excalibur.%attacker%} = 0
        
command /excalibur:
    permission: *
    trigger:
        give diamond sword named "&eExcalibur" with lore "&7Wlasnosc: &f%player% ||&7Zabiles &f%{excalibur.%attacker%}%" to player

on damage:
    if attacker's tool is diamond sword named "&eExcalibur" with lore "&7Wlasnosc: &f%player% ||&7Zabiles &f%{excalibur.%attacker%}%":
        apply strength 7 to the attacker for 10 second

on rightclick on sign:
    if line 1 is "&e[Excalibur]":
        if line 2 is "":
            if line 3 is "":
                if line 4 is "$300000":
                    if player's balance is smaller than 300000:
                        send "&6[SignShop] &fNie masz dolarow! Zamow smsem lub zarabiaj!"
                    else:
                        send "&6[SignShop] &fZakupiony EXCALIBUR za &a300000"
                        remove 300000 from player's balance
                        give diamond sword named "&eExcalibur" with lore "&7Wlasnosc: &f%player% ||&7Zabiles &f%{excalibur.%attacker%}%" to the player