how to read a mtg card reading the explains the card How to Play | Magic:

The combo decks of old used to rely heavily on speed and so the cheapest options tended to be the best

You can think about it in decks like Teysa Karlov where you sacrifice creatures but also take advantage of tokens, like with the afterlife mechanic

Most people already respect the power of Sword of the Animist, and Staff of Titania is basically a variation on that card

On MTG: Arena if you crafted a copy for a prior set, you can use that card again if it re-enters Standard

Players have been trying to get an Azorius Artifacts deck going in Standard for a while now, and this could be the piece that really brings it all together