There are two kinds of cards that dont qualify for this list
2 Seasoned Dungeoneer As one of the two primary initiative creatures in Legacy, Seasoned Dungeoneer has been taking Legacy by storm, and it's easy to see why
Cards like Karn, History of Benalia, and Goblin Chainwhirler are all great, but they are simply rate cards, not cards that are ban-worthy
Blast Zone is a little mana-intensive, but as a land with an activated ability, it's hard for your opponents to interact with
Transform was also included in Neon Dynasty and our returns to Innistrad
The Phyrexian Dinosaur cant get countered and is difficult to remove once on the battlefield with a Ward of four