Is Crashing Footfalls legal in Standard, Modern, and Commander?

Crashing Footfalls is legal in: Modern, Legacy, Vintage, Commander, Historic.

Crashing Footfalls

Q: What type of card is Crashing Footfalls?

Crashing Footfalls is a Sorcery. Its oracle text reads: "Suspend 4—{G} (Rather than cast this card from your hand, pay {G} and exile it with four time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.) Create two 4/4 green Rhino creature tokens with trample."

Sorcery

Suspend 4— (Rather than cast this card from your hand, pay and exile it with four time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)