Canticling Shade

As long as Canticling Shade is out on the battlefield, whenever you tap a land for mana, add {b}. (In addition to the mana the land produces).
{b}: Canticling Shade gets +1/+1 until the end of turn.
"In the dead you often hear the deep woods begin to sing, If you venture to far in, you'll find out that it is him."