Beifongs Bounty Hunters could see a lot of play based on the combo aspect alone
Krark, the Thumbless Krark, the Thumbless is a neat spellslinger commander that plays on a fringe theme: coin flipping
My one complaint during this era was that aside from a few characters like Ertai and Crovax, we never saw more than one appearance
Marked at 001/001 there is a single serialised One Ring out there to find
Four of the Five Flip 'Walkers Tamiyo, Inquisitive Student // Tamiyo, Seasoned Scholar, Ajani, Nacatl Pariah // Ajani, Nacatl Avenger, Ral, Monsoon Mage // Ral, Leyline Prodigy, and Sorin of House Markov // Sorin, Ravenous Neonate have all been seeing a considerable amount of play, with Tamiyo, Ajani, and Ral basically being format staples and finding homes in Tier 1 decks
On its first chapter, it puts two forest cards in your hand