Urza, Lord High Artificer is a great Artifact payoff
While Wizards of the Coast doesnt shy away from Arabian Nights history and Earthly inspiration, to square the lore circle the company did eventually retcon the sets lore in a series of comics, now saying it takes place on the fictional desert plane of Rabiah
However after playtesting it a bunch, I realized that I wasn't getting a lot of benefit from Morophon being in the command zone as opposed to the 99: while powerful, Morophon costs a whopping 7 mana to cast, which meant that for a large part of the game I wasn't getting any value from it and it was difficult to recast it once it died
6 Boom // Bust Boom // Bust is a split card, allowing you to cast either side of it you'd like
A three mana 'walker is as cheap as you'll typically get, and many of the best planeswalkers of all time, like Liliana of the Veil, are three mana
Edgar Markov Still the best Mardu card after all these years, Edgar Markovs eminence is really a problematic ability, isnt it