Is Forerunner of the Empire legal in Standard, Modern, and Commander?

Forerunner of the Empire is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Forerunner of the Empire

Q: What type of card is Forerunner of the Empire?

Forerunner of the Empire is a Creature — Human Soldier. Its oracle text reads: "When this creature enters, you may search your library for a Dinosaur card, reveal it, then shuffle and put that card on top. Whenever a Dinosaur you control enters, you may have this creature deal 1 damage to each creature. Power/Toughness: 1/3"