Springjack Pasture

Oracle Text

T: Add C.

4, T: Create a 0/1 white Goat creature token.

T, Sacrifice X Goats: Add X mana of any one color. You gain X life.

Card Rulings

8/1/2008 Springjack Pasture’s last ability is a mana ability. The whole ability — including the life gain — doesn’t use the stack and therefore can’t be responded to.
8/1/2008 If you sacrifice no Goats, you’ll add no mana to your mana pool and you’ll gain no life.
8/1/2008 You can sacrifice any Goats you control to activate the third ability, not just Goats created by Springjack Pasture.