Amythest cards in Disney's Lorcana have featured some of the most powerful and frightening magic users from across all the Disney franchises
Xanathar, Guild Kingpin When you can play the top card of your opponent's library, you'll see it next to the other cards in your hand (instead of on your opponent's library) as a "near hand castable," just like cards you can play from your graveyard or exile.
So yeah, if you're building Nazahn, Revered Bladesmith, that's what I'd spend my first $20 on, like so: The next cards I would pick up would be Sigarda's Aid, Puresteel Paladin, Sram, Senior Edificer, and Open the Armory
Move Fire Magic to the side board
Rather than one clear strategy, this deck gives you a large number of options for overtaking your opponent