erika pokemon card Erika's Invitation - 196/165 (196/165) Captured in a crystal Pokemon Scarlet & Violet 151

It seems unplayable outside of some kind of EDH deck that runs red in a blink shell (an idea that gets better and better with each release!)

This is naturally sort of Magical Christmas Land territory, but the fact that Response even works on blocking creatures means that its able to help aggro decks punch through most things that would block and give them fits, like Lyra Dawnbringer Response // Resurgence is another card that falls into a similar vein as Assure // Assemble

Not to mention that sleeving your deck will take forever and be rather expensive without penny sleeves

Bouncing a creature is another tactic of Blue since it cant straight up blow up creatures like Red or Black can