Lydari Druid 
Creature — Druid
When Lydari Druid enters, for each land on the battlefield, choose a basic land type at random. Those lands become the land types chosen this way. (This effect lasts indefinitely.)
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL