My deck was

Mutamix Bubblypots, Memeroon, Baderon Tenfingers, Mother Miounne, and Bahamut

No regional rules were active, so it was Chaos only. My win rate was about 70%, because no matter what deck you have have, there is some RNG due to the Chaos rule.

I say was because after getting 30 NPCs last night and getting Squall card, I have a new deck I made I have yet to test, with 2 cards changed based on adding Squall. New one consists of replacing Bahamut with Squall, and due to Squall's strengths covering different ranks than Bahamut, I had to strengthen the upper rank, so I replaced Baderon Tenfingers with Momodi Modi. If this deck works just as well or even better I'll post back later. Theoretically it should increase win rate a bit.