Puregrove Warden

Primal {2}{g}{g}(You may cast this spell for its primal cost. Spend only mana produced by basic lands to pay that cost.)
When Puregrove Warden enters the battlefield, if its primal cost was paid, create a 2/2 green Wolf creature token.
Puregrove was cut off from the outside world for thousands of years, and many of its inhabitants would kill for it to be so once again.