Is Skullport Merchant legal in Standard, Modern, and Commander?

Skullport Merchant is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

What type of card is Skullport Merchant?

Skullport Merchant is a Creature — Dwarf Citizen. Its oracle text reads: "When this creature enters, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.") {1}{B}, Sacrifice another creature or a Treasure: Draw a card."