Wish lets you pull a card from outside the game, and it has a bunch of clones like Glittering Wish that do something similar
Ways to copy this trigger like Rings of Brighthearth are the final pieces of this puzzle that drowns your opponents beneath token armies
Rigo, Streetwise Mentor itself gives you a card, and its flexible enough that you can either focus on the attack triggers and saboteur effects (Delney, Streetwise Lookout and Enduring Curiosity, for example), or you can try to overwhelm your opponents with sheer numbers in a token build
On tabletop, Ishai, Ojutai Dragonspeaker has enough punch to be cEDH-viable when paired with Jeska, Thrice Reborn, who triples Ishai's punch and gives her access to red which is exactly what a partnership with Hugo Kupka will bring to Arena
Zoroark ex : This low cost Dark deck has a very strong early-game and disrupts enemy strategies
In the coming months, Ill be curious to see if any of these cards will prove to be less fun than I thought, and which cards that didnt make the list end up as format all-stars