Is Tectonic Reformation legal in Standard, Modern, and Commander?

Tectonic Reformation is legal in: Modern, Legacy, Vintage, Commander, Historic.

What type of card is Tectonic Reformation?

Tectonic Reformation is an Enchantment. Its oracle text reads: "Each land card in your hand has cycling {R}. Cycling {2} ({2}, Discard this card: Draw a card.) *Alone in the charred desolation of her kingdom, she regretted many things—most of all not acting sooner.*"