Upgradable NFTs in game


Hello everyone,
I'm quite new to this whole area and only started researching into it yesterday. From what I understand when you add an item into a game you can set it's metadata, e.g. damage. Would it be possible for a player who owns this token to upgrade any of this stats, editing the metadata and making the token permanently openweb.vip/whatsapp-web/ https://19216801.onl/ routerlogin.uno/ upgraded and keeping this upgrade once its traded? In a game, upgrading an item would suggest it's value increases, although as far as I can tell the melt value of a token can't be changed after it's minted? So the intrinsic value of the token would not increase with the upgrade, just its in game abilities. Is this idea of upgradable tokens possible?
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I don't think you could allow game players to upgrade the stats. However, Maybe you could ask players to exchange their current toke for a high level token when they meet some criteria.