pfsadfhsafas asked: You often, and probably rightfully, blame all power mistakes on Development. Isn't a card like Tolarian Academy just overpowered DESIGN? How could it be developed, cleanly and elegantly, to be fair?

I don’t blame all power mistakes on development. For example, I made the free mechanic in Urza’s Saga block. That mechanic is broken in half and there wasn’t much development could have done to fix it. 

If a card is broken though and wouldn’t be if it cost some more mana, that’s not on design. We do share plenty of burden in making broken Magic cards.