They essentially took the place of the Planeswalker Decks and arent really that complex
At turn 3 and 4, the choices you make can win or lose the game
With a similar number of counterspells and a more streamlined manabase, it was a natural shift
One of the strongest examples of this is Jeska's Will, which can add red mana equal to the cards in a target opponent's hand, and exile cards off the top of your library to play them this turn
Emry serves very well as the commander, but is an incredible inclusion in any blue artifact deck: think Sai, Master Thopterist or Breya, Etherium Shaper
Here are several pieces that I remember very fondly, he said, referencing Sephiroth, Fabled SOLDIER and Sephiroth, Planets Heir