Is Festival legal in Standard, Modern, and Commander?

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

What type of card is Festival?

Festival is an Instant. Its oracle text reads: "Cast this spell only during an opponent's upkeep.Creatures can't attack this turn."

Instant

Cast this spell only during an opponent's upkeep.<br>Creatures can't attack this turn.

Set The Dark

Rarity Common

Artist Mark Poole

Instant Commander Pauper Legacy