Is Rubble Rouser legal in Standard, Modern, and Commander?

Rubble Rouser is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

What type of card is Rubble Rouser?

Rubble Rouser is a Creature — Dwarf Sorcerer. Its oracle text reads: "When this creature enters, you may discard a card. If you do, draw a card. {T}, Exile a card from your graveyard: Add {R}. When you do, this creature deals 1 damage to each opponent."