Notes & Combos
15-5 9-win streak. Kashtira is really cooking right now. GY hate cards such as Dimensional Fissure, Macro Cosmos, Dimensional Shifter... can shutdown all meta deck if they don't play any backrow removals. Deck Lockdown is also a decent pick since Crystrons, Mimighouls and Mermails search a lot (especially Mimighouls, both of the card's effect hurt them hard).
About Super Poly, i suggest swap them out for more floodgates or handtraps. Though it is a good board breaker when going second, top decks tend to have around 5-6 interrupts or more to throw at us so 1 super poly is never enough. Focusing on going 1st or simply adding more handtraps to stop opponent from playing the games, the choice is yours.