Is Bedhead Beastie legal in Standard, Modern, and Commander?

Bedhead Beastie is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

What type of card is Bedhead Beastie?

Bedhead Beastie is a Creature — Beast. Its oracle text reads: "Menace (This creature can't be blocked except by two or more creatures.) Mountaincycling {2} ({2}, Discard this card: Search your library for a Mountain card, reveal it, put it into your hand, then shuffle.)"