I wouldn't say that's true (unless things have changed since I played). There are some decks that are dependent on many rare and expensive cards... but its also

I wouldn't say that's true (unless things have changed since I played). There are some decks that are dependent on many rare and expensive cards... but its also possible to build killer decks on common/uncommon cards with perhaps a few rare ones. Deck construction really is one of the more creative aspects of MtG where you can create new kinds decks or twists on old ones