(: Add .)
As Murmuring Bosk enters, you may reveal a Treefolk card from your hand. If you don’t, Murmuring Bosk enters tapped. : Add or . Murmuring Bosk deals 1 damage to you.
Murmuring Bosk is a Forest, but it isn't a basic land. Things that affect basic lands don't affect it. Things that affect basic land types do. For example, you can't find Murmuring Bosk with Fertilid's ability ("searches their library for a basic land card"), but you can find Murmuring Bosk with Everbark Shaman's ability ("search your library for two Forest cards").
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.