Notes & Combos
Fairly standard Naturia Runick list.
Negate all their spells and monsters via Naturia, control the game and draw a ton of cards via Runick.
Book was great. In addition to blanking opponents' cards, flipping my own monsters facedown to dodge negation won me a few games. Imperm/Veiler and other targeted negation are obvious, but if they negate your sunflower you can still chain it when they do something you want to negate, chain book to turn sunflower facedown, and it'll resolve.
Ash isn't needed - you don't care about Maxx C, a board of Fountain + Camellia + Hugin is perfectly fine to pass on, and by chaining a Runick to their Maxx C, they only get 0-1 draws.
Maintained an about 80% winrate through the entire first stage. Last 20 games were 16-4.