Each AI operation has its own credit cost: deck generation (5 credits), collection analysis (4 credits), battle simulation (3 credits), deck or metagame analysis (2 credits each), card identification (1 credit), and rules chatbot (1 credit per 2 messages)
Base Set 1st Edition holographic Charizards in high grade can be worth thousands
Also, special grading organizations are important in establishing the Magic cards value
Part of whats so weird about Balance is just how long it took most of the world to realize how broken the card was
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Similarly, you may struggle to cast Blasphemous Edict for cheap if your opponents are playing around it, or not going wide