slay the spire card sleeves Here to Slay: Oversized 5x88mm cards Slay the Spire: The Board

I have been a big fan of this two-rulebook trend since I first encountered it in Star Wars: Rebellion, and they have outdone themselves with this one

This means that what you see is what you get, and you cannot get an upgrade to its power

Exchange is definitely an interesting card, and it makes perfect sense to run it alongside something like Thunder Dragon

But in some +1/+1 Counter decks, like Skullbriar, the Walking Grave or Mowu, Loyal Companion, it's exactly what the deck needs to explode and start 1-shotting fools

Must be Special Summoned (from your Extra Deck) by shuffling the above cards from your hand, field, and/or GY into the Deck/Extra Deck