Yep - no skills, luck, nor IM. There are a lot of other factors for card value too. Rarity, distribution, art, and history can all play a role in a card's value. The features deployed on my app now are just for the bulk purchase of those stats you find in the menu. It's not meant to be a comprehensive look at card value. I do hope to add historical sale prices for each card soon, and that would be more helpful for card valuation (but still not a complete picture)