Bitterblossom is simply the sidestep gameplan-in-a-box type of card for Affinity to make all of those answers look foolish
Her ace monster from the anime, Chevalier de Fleur, is a Level 8 WIND Synchro Monster that prevents your opponent from blocking your wind of victory by negating the opponents Spell or Trap cards during your turn
You can Ritual Summon this card with "Ninja Cat Secrets" Ritual Spell
If you want to lead with Wick you'll need Piper of the Swarm, Lord Skitter, Sewer King, and Vren, the Relentless, because without a consistent drip from a colony of rats, 3-mana for one point of direct damage and one card drawn is too small
Menace does count as evasion which makes this leader of assassins extremely dangerous
It wouldn't be a surprise to see control decks emerge packing 4 of these, but it's likely at its strongest in midrange strategies where the combat math getting messed up helps too