Swamp

{t}: Add {b} to your mana pool
{4}{t}: Choose any number of players and/or permanents that have counters on them, then
remove one of each kind of counter that are
already there on these players or permanents
It is situated in a temperate environment
characterized by bodies of stagnant water, tall
deciduous trees, moist caverns, and patches of tall
brown grass. It is inhabited by a variety of monsters, including Gypceros, Shogun Ceanataur, and Khezu