Every deck that can run it, SHOULD run it, as the card is simple, incredibly effective, and allows you to get your game plan moving before your opponents can even react
Cards like Kura, The Boundless Sky from Kamigawa Neon Dynasty or Needlethorn Drake from Strixhaven: School of Mages make for reliable ways to keep yourself safe from larger creatures
As a result, red-green's big spell theme was born out of an explicit desire to connect these two mechanics by a single shared feature between them: cost reduction
The answer depends entirely on what you value most
Deserts are very rarely playable outside of filling in Limited decks, but there are still a few Id consider budget-playable in formats like Commander where land utility is great and fixing is king
The alternative was to burn five sideboard slots on useless cards, and that obviously was not a good answer