Is Temporal Firestorm legal in Standard, Modern, and Commander?

Temporal Firestorm is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Temporal Firestorm

Q: What type of card is Temporal Firestorm?

Temporal Firestorm is a Sorcery. Its oracle text reads: "Kicker {1}{W} and/or {1}{U} (You may pay an additional {1}{W} and/or {1}{U} as you cast this spell.) Choose up to X creatures and/or planeswalkers you control, where X is the number of times this spell was kicked. Those permanents phase out. Temporal Firestorm deals 5 damage to each creature and each planeswalker."