Legendary Item Upgrades (Last Update: 24/3/2023)

[Julia.]

That might be true if you plan to sell your stuff you've just upgraded again at some point. On the other hand, if you want the best possible set you're best of with upgrading the item locked the least classes usable by that class. Otherwise you'll upgrade an item and then need to trade for it's better version and upgrade again or simply pay that upgrade if you get it over a trade.

I am fairly certain once you've tested diffrent classes and figured which one you actually like [or simply which ones you don't like], you can upgrade locked items pretty save for personal usage.