Augur understands power level and helps you tune in either direction
You also get two foil Floodborn characters, The Queen, Commanding Presence and Gaston, Intellectual Powerhouse, as well as some shift targets and a couple of support cards in Grand Duke and Lefou respectively
Urza's Saga finds Library of Leng and Sensei's Divining Top, two of the decks best cards (though I indulge in Currency Converter more often than needed)
While the obvious first home for Urza's Cave is Tron decks as a failsafe for games where it's difficult to assemble the three Urza lands necessary for the strategy's explosive mana acceleration , it's also interesting to consider what else Urza's Cave can do in decks featuring Knight of the Reliquary, Elvish Reclaimer, and the Modern Horizons 3 reprint Sylvan Safekeeper
Knowledge is Power
With this reveal, however, I feel fairly certain Magic Broom decks are going to gain a lot of popularity, as being able to move to this location for free is a huge advantage, as is gaining an extra lore
