Hes hungry for Energy, but if youre an Energy deck you should be able to keep him full, especially because he lets you give up artifacts for more Energy
The good, and also bad news, is that we are just bad at the game
(10/14/2022) During each of your turns, you may activate Urza, Planeswalker's loyalty abilities twice, whether that's activating the same ability two times, or activating two different abilities once each
She comes from a family of rural salt-of-the-earth Norse farmers, and as such grew up so far removed from any nerds that I don't really believe that anyone in her circle were familiar with nerd shame as a concept
You should definitely consider them for your decks, but just be aware of the damage you take over the course of your games