Magic: the Gathering is a collectible card game created by Richard Garfield. In Magic, you play the role of a planeswalker who fights other planeswalkers for glory, knowledge, and conquest. Your deck of cards represents all the weapons in your arsenal. It contains the spells you know and the creatures you can summon to fight for you.Card Name: Underground RiverColor: LandCard Type: LandCard Text: T Add 1 to your mana pool. T Add U or B to your mana pool. Underground River deals 1 damage to you.