Guildpact uncommon. One of the challenges with the guildmages was getting their two abilities to be relatively equal in power, since they each have mirrored mana costs. With the Orzhov Guildmage, the challenge was that causing life loss is, generally speaking, more powerful than gaining life. So, to keep the costs and the gain/loss numbers equal, R&D made the life gain side targeted, whereas the life loss side effects everybody in the game.
