Is Dockside Extortionist legal in Standard, Modern, and Commander?

Dockside Extortionist is legal in: Legacy, Vintage, Historic. It is banned in: Commander.

Dockside Extortionist

Q: What type of card is Dockside Extortionist?

Dockside Extortionist is a Creature — Goblin Pirate. Its oracle text reads: "When this creature enters, create X Treasure tokens, where X is the number of artifacts and enchantments your opponents control. (Treasure tokens are artifacts with "{T}, Sacrifice this token: Add one mana of any color.")"

Creature — Goblin Pirate

When this creature enters, create X Treasure tokens, where X is the number of artifacts and enchantments your opponents control. (Treasure tokens are artifacts with ", Sacrifice this token: Add one mana of any color.")