Sudden Chill is more of a control card to remove one of the opponents Characters from play and slow down their pace immensely
Each of these cards is a "page" that, when put together with the other lore cards, will reveal an adventure and expand upon the story
Like Rhystic, this card rewards teamwork and punishes selfishness
While some may not want to totally give up all their card game secrets, this is a great way to expand one's knowledge of the game's cards and how they work together or against each other
Matoya, Archon Elder is a sweet draw engine, and I can see her fitting into Kenessos sea creatures, Tales of Middle-earth blue-green decks like Elrond and Galadriel, and shell also just generally be a good engine piece in graveyard strategies that surveil a lot, like Mirko, Obsessive Theorist
Many infamous D&D monsters and characters will receive the frame