These sealed packs certainly can be found on the market, but if WotC does not continue to release them, they become discontinued
The upside of Engulf the Shore is that it's instant speed, which lets us leave up countermagic and then bounce all creatures at the end of our opponent's turn
Once per turn: You can discard up to 2 cards, then target that many Spell/Trap Cards on the field
If we went such a route, we might also try Indulgent Aristocrat as an additional payoff
Learn how to play with your own deck, easy-to-follow rules, strategy tips, and reference card 100 CARD BLUE-BLACK DECK: With the Grave Danger deck, ally with the human wizards and siblings Gisa and Geralf and overwhelm foes with a multiplying army of zombies FOIL-ETCHED LEGENDARY CREATURE CARD: Includes 1 legendary creature card with gorgeous art and a foil-etched treatment
If you open one of these, you're in luck