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
Last but not least, Old GnawboneOld Gnawbone feels great when we're attacking multiple times per turn, and really takes advantage of all the high power creatures we'll be going to combat with
Mana Crypt is more than just part of the debut for Special Guests and appears in Collector Boosters with the cosmium neon ink treatment (like Cavern of Souls shown earlier): Mana Crypt (Cosmium Neon Ink) (Note that The List , a flavorful way to reprint cards in Set Boosters, also continues with The Lost Caverns of Ixalan .) We'll share more from Special Guests on October 24 with the debut for The Lost Caverns of Ixalan
Also if your opponents wise up and hold removal for Zada then the deck has very limited options to protect her