Adventure Spright Genesys

Lots of cool syngergies here, mostly tied to Tidal. If you open Tidal and any other Water (preferrably Enchantress or Angler), you can dump lots of good things. Enchantress to start the Adventure line, Angler to summon two Beaver from deck, Mirror Mage to search Freezing Chains. The Adventure line tragically lacks Gryphon Rider (although you could swing it with some fanagling), but Illegal Knight isn't the worst alternative. It does conflict with the Beaver Normal Summon line, but that needn't come up if you open Beaver and literally any Spright monster.

Dumping Angler off of Tidal, or even off of Fateful Adventure's search effect, nets you two Beaver that you can use to XYZ for Gigantic Spright. If you already opened Blue or Starter, you can also make Melffy of the Forest. This will get you Catty, leading to a bounce on the opponent's turn in the form of Merry Melffys. This can also happen off of Hop Ear Squadron.

The Paleo stuff is kind of hit-or-miss. They work well, but lacking the ability to reliably dump them is sorta sucky. Magicolloidal Soul is in here as another extender off of Tidal, but it doesn't always come up. It IS a quick XYZ and Synchro though. Quick activation off of Opabinia is cool. Spright Double Cross is a good trap card, and if you can activate it while you have Paleo stuff in grave, you'll net a few bodies.

The side deck is liquid, and mostly just an excuse to show off alternative engine ideas. The main list is very Water-heavy, and I like Ice Doll as a concept. If locking yourself isn't the goal, Dark Beckoning Beast and Opening of the Spirit Gates are a normal summon option.