Switching out his background is a shame since Folk Hero works so well, but Raised by Giants is a solid choice to improve the deck's color identity by providing access to green.
Can I Miracle After I Draw the Card
Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Legal Toolbox Buy This Card Notes and Rules Information for Cryptbreaker: You can tap any three untapped Zombies you control, including ones you havent controlled continuously since the beginning of your most recent turn, to pay the cost of Cryptbreakers second activated ability
Zada, Hedron Grinder can also play as a budget, glass-cannon style goblin storm deck.
And if enemy wedges arent what your deck is looking for, Streets of New Capenna released the allied shard versions in 2022
This card being black also means that any deck its in has a big chance of having cards that can bring it back from the graveyard, so you shouldnt be too afraid to attack with it and fill your field with zombies