That Aqua Deck is surprisingly versatile and strong - and, like every other adversary deck, actually usable once you unlock it and get all of the cards
So for example if an explore card tells you to "Get a random green rare." You flip cards from the random rares pile until you find a green one, then you keep it
Engle Sheoldred, Whispering One: art by Flavio Girn Skirthiyx, the Blight Dragon: art by Kekai Kotaki Vorinclex, Voice of Hunger: art by JungShan Zada, Hedron Grinder: art by Dominik Mayer Urabrask the Hidden: art by Flavio Girn Yargle, Glutton of Urborg: art by Serena Malyon Promos If you are able to get your hands on a promo pack during prerelease events, you might find a Botanical Brawler, Halo Forager, Kami of Whispered Hopes, Norns Inquisitor, or a Scrappy Bruiser
UR Ultra Rare Dark Cavalry X DARK Level 8 [ SpellcasterFusionEffect ] ATK 2800 DEF 2300 "Dark Magician" + 1 Warrior monster Gains 100 ATK for each Spell/Trap on the field and in the GYs
Scheming Symmetry is a lot of fun at more casual tables
Madolche Lesson: Get a Madolche from the Graveyard, all Madolches you control gain a 800 ATK and DEF boost