Song of Seasons 
Sorcery
Seek a Mountain card, a Forest card, and a non-Mountain, non-Forest land card. Put one of them onto the battlefield and put one of them into your graveyard.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL