Is Repeated Reverberation legal in Standard, Modern, and Commander?

Repeated Reverberation is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Repeated Reverberation

Q: What type of card is Repeated Reverberation?

Repeated Reverberation is an Instant. Its oracle text reads: "When you next cast an instant spell, cast a sorcery spell, or activate a loyalty ability this turn, copy that spell or ability twice. You may choose new targets for the copies."

Instant

When you next cast an instant spell, cast a sorcery spell, or activate a loyalty ability this turn, copy that spell or ability twice. You may choose new targets for the copies.

Set Commander Masters

Rarity Rare

Mana Value 4

Artist Izzy

Collector # 879

Scryfall Gatherer