Howl of the Night Pack
Magic 2010 — uncommon
Sorcery
Howl of the Night Pack rulings:
2013-07-01: The number of Wolves you put onto the battlefield is based on the number of Forests you control when Howl of the Night Pack resolves.
2013-07-01: Howl of the Night Pack counts any land you control with the subtype Forest, not just ones named Forest.