Is Doomskar Titan legal in Standard, Modern, and Commander?

Doomskar Titan is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

What type of card is Doomskar Titan?

Doomskar Titan is a Creature — Giant Berserker. Its oracle text reads: "When this creature enters, creatures you control get +1/+0 and gain haste until end of turn. Foretell {4}{R} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)"