I think its pretty clear which category Ancestral Recall belongs in
All kinds of blue draw effects immediately buff Baxter, from Rhystic Study to slapping Curiosity right on him
Ricardo Silva White creature decks have historically mostly either been interested in taxing your opponents resources with cards like Thalia, Guardian of Thraben and Leonin Arbiter, or in playing cheap creatures in an aggressive style of play (White Weenie)
In fact, many players dont really know the value of casual cards at all
It's a miracle that any of them still exist, so whenever one in good condition hits the market, collectors are willing to pay wild amounts of money to make it theirs
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