When a Siege is cast, its controller must pick an opposing player to be its defender
Experience counters are a strong mechanic since your opponents can rarely interact with them unless they play Solemnity on curve
Once each turn, whenever you cast a spell, you can put it on the bottom of your library to reveal cards from the top until you find a nonland card, which you can then cast for free
Fire-Rim Form I'm not super high on this or anything, but it is worth noting that this can be a neat trick for Bogles decks to deal with Echoing Truth matchups
Magic: The Gathering 's Universes Beyond project is an exciting way to bring other worlds to life as interesting and flavorful MTG cards, like the eagerly anticipated LotR: Tales of Middle-Earth set
Additionally, there is little else to reward an artifact-heavy blue draft