Is Thermokarst legal in Standard, Modern, and Commander?

Thermokarst is legal in: Legacy, Vintage, Commander, Pauper.

What type of card is Thermokarst?

Thermokarst is a Sorcery. Its oracle text reads: "Destroy target land. If that land was a snow land, you gain 1 life."

Sorcery

Destroy target land. If that land was a snow land, you gain 1 life.

Set Ice Age

Rarity Uncommon

Artist Ken Meyer, Jr.

Sorcery Removal Commander Pauper Legacy