Blue-Red Delver quickly became the tier zero deck in Modern thanks to the card advantage that Treasure Cruise offered, and within a few months, the spell had to be banned in Modern and in Legacy and eventually restricted in Vintage as well
Mishra and Urza are no different, as both require powerful artifacts to be in play alongside the brothers corresponding creature cards in order for them to meld into a singular, more powerful card altogether
If you can get to seven mana, Karn Liberated is probably going to take over the game
1 Desolation Twin
Arcane Denial also tends to provide you with a tempo edge, not only is the card cheap and therefore usually answering something of greater cost but it also tends to let you untap and use the card drawn from it before your opponent
To kick off your collection, every deck comes with one foil-etched commander card, with shining foil etched into gorgeous alternate art