Is Abandon the Post legal in Standard, Modern, and Commander?

Abandon the Post is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

What type of card is Abandon the Post?

Abandon the Post is a Sorcery. Its oracle text reads: "Up to two target creatures can't block this turn. Flashback {3}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.) *You don't have to outrun the werewolf; you only have to outrun your fellow guard.*"