Aetherdrift Commander

Fetid Pools

({T}: Add {U} or {B}.)
Fetid Pools enters tapped.
Cycling {2} ({2}, Discard this card: Draw a card.)

({T}: Add {U} or {B}.)
Fetid Pools enters the battlefield tapped.
Cycling {2} ({2}, Discard this card: Draw a card.)

Ask any of the old-timers and they'll all agree—something ancient and terrifying haunts the sea.

Fetid Pools enters the battlefield tapped.
Cycling {2}

"Whoever holds the Source controls the destiny of the planet."
—Cobb

({T}: Add {U} or {B} to your mana pool.)
Fetid Pools enters the battlefield tapped.
Cycling {2} ({2}, Discard this card: Draw a card.)