As long as you have a Rare that doesn't have the Mage keyword, though, you can be certain of keeping a Rare in hand. With seven Common Mages available for your deck, you have close to a 50% chance of drawing another Mage to keep the effect going. I'll acknowledge that the number of Mages in your hand is likely going to decrease and slow Mage token gains, but I still see this as an excellent way to gain facilities while laying on a decent offensive.