"Moonlit Marsh"

Aria (When "Moonlit Marsh" enters the battlefield, target bard gets +X/+X as long as "Moonlit Marsh" is on the battlefield. X is the converted mana cost of "Moonlit Marsh".)
Each swamp produces an additional {b} when tapped for mana.
"The will wisps guide me through the marsh where I will meet thee to swim under the moonlight."