The author came up with a broken cheat, and then used external factors to restrain it. For example, he can only use it once per realm on any item. So he cannot just continuously advance his cultivation, since he can only do it once per realm. However, even that is not enough and now the MC has a seal placed on him. Not horrible, but also not something I'd recommend.
Two Ounce
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LIKEIts not one per realm its Being able to modify the SAME thing One time per Realm. Because he modifys his cultivation n spells.
Darkmusho:I'm still going to read it sounds interesting
Shouldn't they be happy that he can't become super overpowered instantly. and didn't it say in the rules that he's only able to upgrade one object once per realm. or am I missing something.
Shadowles_Immortal:Its not one per realm its Being able to modify the SAME thing One time per Realm. Because he modifys his cultivation n spells.