Is Malboro legal in Standard, Modern, and Commander?

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

Malboro

Q: What type of card is Malboro?

Malboro is a Creature — Plant Horror. Its oracle text reads: "Bad Breath — When this creature enters, each opponent discards a card, loses 2 life, and exiles the top three cards of their library. Swampcycling {2} ({2}, Discard this card: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.)"