Can be infinite creatures, infinite damage, infinite mana, infinite card draw, or anything that goes big
8 Unyielding Gatekeeper None Shall Pass Disguise is one of the main new mechanics from Murders at Karlov Manor, letting you place cards face down on the battlefield as a 2/2 creature with ward 2
While Fireminds Research is a little slow for the maindeck, I think its a solid option out of the sideboard (and if the format slows down enough, the maindeck wouldnt be completely out of the question)
Those still exist, but Miracle Worker really wants to get something like One with the Multiverse in play and win from there
One thing I learned from filming VS Live
While the card type was initially seen as too slow for constructed use due to the staggered nature of their effects, these worries were quickly cast aside once players got their hands on some of the better sagas and saw just how good their value over time could be