Is Thirsting Roots legal in Standard, Modern, and Commander?

Thirsting Roots is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Thirsting Roots

Q: What type of card is Thirsting Roots?

Thirsting Roots is a Sorcery. Its oracle text reads: "Choose one — • Search your library for a basic land card, reveal it, put it into your hand, then shuffle. • Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)"