Cost: 1.
Test Icons:

Za każdą strefę mistyczną, którą posiadasz, dobierz 1 kartę (maksymalnie 5). Za każdą zajętą strefę mistyczną, którą posiadasz, wybierz i odrzuć 1 kartę z twojej ręki.

Ze światła oraz z cienia niech zmierzch zrodzi brzask, a przemiana tego świata wieczną potęgę nam da.
Anders Finer
Szkarłatne klucze - Rozszerzenie badaczy #86.
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A basic analysis would say you need to draw at least 3, probably 4 to make this even worth considering. You spend an action to play this card, this card itself is lost, and you pay 1 resource (worth approx. 0.5 to 1 action). If you only draw 2 or less, you probably wouldve been better off just using the draw card action.

You can't choose to discard weaknesses so its not useful on that front either. Low arcane slot mystics is currently a rare archetype but obviously pairs with Binder's Jar and Explosive Ward.

Might find a home in Amina Zidane since she doesn't have the willpower for the typical spells, or a Dragon Pole Lily Chen deck? I think at the moment it might be a bit too hard to setup for too little payoff.

fates · 46
Sefina with the jar or Astral Mirror? — MrGoldbee · 1369
Remember that you can discard other cards than the ones you drew. This means you can cycle through your deck, looking for the best card in your current situation. Still not great, though. — andreasskovse · 12