Players will have 42 cards in total at the end of the process, plus the few Land cards theyll have gathered from each pack
With Fires of Invention banned, we lost our chance to unlock that powerbut M21 has offered us a Fiery Emancipation
This may change with the release of Thrones of Eldraine, however, as Standard has a critical mass of cards that shave the top of your opponents library down
With other complementary artifact mana sources like Thran Dynamo and Grim Monolith, decks could count on being able to get the kind of mana you'd need to justify packing the cards that would let you use the mana from Metalworker to deliver the knockout blow, and their presence lets you turn that Metalworker mana into permanent giant amounts of mana rather than just a one shot deal
Hard to predict and even harder to play against, Embercleave was an absolute nightmare in Standard
Greater focus on Locations as a strategic element with more opportunities for Lore