Cerberus, Hound of Valakut

Landfall - Whenever a land enters the battlefield under your control, you may create one of either a 2/2 red Hound creature with first strike and hastea 2/2 green Hound creature with hexproof and trample, or a 2/2 white Hound creature with lifelink and vigilance. If you do, Cerberus, Hound of Valakut gains the abilities of the token you create.
{r}{g}{w}, {t}: Put a land card from your hand or graveyard onto the battlefield.