Like most liberated free thinkers, we don't discriminate between types of mana based on their colors. To us, it's all just mana. That said, if you're a little less enlightened, here's a Magic: The Gathering - Tactics "White Mana" trailer just for you. Enjoy your barriers, cro-magnon.
Magic: The Gathering -- Tactics is an online, 3D turn-based strategy game that allows players to command forces of dramatic 3D figures and powerful spell cards pulled from the Magic: The Gathering Multiverse. Players can participate in single player scenarios or jump right into PVP action against other players worldwide, 24 hours per day.