Is Ambuscade Shaman legal in Standard, Modern, and Commander?

Ambuscade Shaman is legal in: Modern, Pioneer, Legacy, Vintage, Commander.

What type of card is Ambuscade Shaman?

Ambuscade Shaman is a Creature — Orc Shaman. Its oracle text reads: "Whenever this creature or another creature you control enters, that creature gets +2/+2 until end of turn. Dash {3}{B} (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)"

Ambuscade Shaman

Creature — Orc Shaman

Whenever this creature or another creature you control enters, that creature gets +2/+2 until end of turn.

Dash (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)