Lore changing

[Mattllama987]

Hello, im making a custom enchantment script, and im having a small issue. Im setting the lore to the players tool, with the correct custom enchantment "Explosive". But the issue im having is, how can I add multiple levels to the lore of the players tool? So like: Explosive 1, Explosive 2 ect. But it will delete the old explosive lore and add the new lore, explosive 2. I kinda have a thing going now, but im very stumped right now and don't know how to finish this. Ive redone this whole thing a hand full of times, and I really need answers.

Thanks!

variables:
    {explosive::buy::%player%} = 0
command /tntexpick:
    trigger:
        if {ringss::%player%} is more than or equal to 500:
            remove 500 from {ringss::%player%}
            add 1 to {explosion::buy::%player%}
            execute player command "/enchant"
            if {explosion::buy::%player%} = 5:
                send "&c(&4!&c) &7Your explosive is max level!"
        else:
            send "&c(&4!&c) &7You dont have enough rings!"
        if lore of player's held item contains colored "&cExplosive":
            set {_lore::*} to lore of player's held item
            set {_size} to size of {_lore::*} + 1
            set {_lore::%{_size}%} to "&cExplosive %{explosive::buy::%player%}%"
            set lore of player's held item to join {_lore::*} with "||"
        else:
            set {_lore::*} to lore of player's held item
            set {_size} to size of {_lore::*} + 1
            set {_lore::%{_size}%} to "&cExplosive"
            set lore of player's held item to join {_lore::*} with "||"
            add 1 to {explosive::buy::%player%}

 

[Kiip]

Try deleting the item you want to upgrade explosive on,
and then giving it in the same slot of the player with the upgrade in the old state.