Is Riptide legal in Standard, Modern, and Commander?

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

What type of card is Riptide?

Riptide is an Instant. Its oracle text reads: "Tap all blue creatures."

Instant

Tap all blue creatures.

Set The Dark

Rarity Common

Artist Randy Asplund-Faith

Instant Commander Pauper Legacy