A creature that can produce more mana, like Incubation Druid , will also produce infinite mana at the same time
IMO, the best version of the deck is more combo/control
Their opponents can also play instant spells and abilities as before, too
In Mark's article "Game On," he goes more into how we approach this in our Universes Beyond sets
For example, if you use Osgir, the Reconstructor to create two copies of Triplicate Titan, then both of the copies will still have a mana value of 9
In reality, while it certainly introduced some new toys for the format, a lot of people associate the set more with the likes of the banned Hogaak, Arisen Necropolis, the obnoxiously expensive Force of Negation, and some really cool Commander cards