Standard prices were down across the board, a reaction to the formats continued stagnation
You draw a card and discard a card every time shes tapped, and with enough lesson cards in your graveyard, all noncreature spells cost one mana less
While Marvel certainly has enough characters to sustain several Magic: The Gathering sets, I can't help but feel it wasn't the best choice for an extended crossover, at least from a game design standpoint
You could effectively play this way indefinitely, earning rewards, expanding your collection and playing standard Magic: The Gathering
This mostly played in angel kindred decks, unless you want to be a degenerate and combo her with mass land destruction like I would
A lot of people thought it was something random or something to do with the Pokmons stats, but it has nothing to do with either of the two