Notes & Combos
Going first, making Assembled Nightingale was surprisingly viable. It was particularly strong against Mikanko.
I wasn't impressed by Triple Tactics Talent because you often want to play in your draw phase to avoid Droll & Lock Bird and Effect Veiler. I would consider maybe cutting them for Crossout, Called By, or Pot of Prosperity.
3 Broww because you usually want to be drawing into more Purrely spells, not more Dark World monsters. If you can discard Snoww into discard Broww it feels really good, but any more than that is overkill. Being normal summonable is sometimes relevant for Delicious Memory.
I summoned Expurrely Happiness exactly once during the climb. It was good that one time it swung for over 8k damage, but it's definitely cuttable.