Is Dargo, the Shipwrecker legal in Standard, Modern, and Commander?

Dargo, the Shipwrecker is legal in: Legacy, Vintage, Commander.

What type of card is Dargo, the Shipwrecker?

Dargo, the Shipwrecker is a Legendary Creature — Giant Pirate. Its oracle text reads: "As an additional cost to cast this spell, you may sacrifice any number of artifacts and/or creatures. This spell costs {2} less to cast for each permanent sacrificed this way and {2} less to cast for each other artifact or creature you've sacrificed this turn. Trample Partner (You can have two commanders if both have partner.)"

Dargo, the Shipwrecker

Legendary Creature — Giant Pirate

As an additional cost to cast this spell, you may sacrifice any number of artifacts and/or creatures. This spell costs less to cast for each permanent sacrificed this way and less to cast for each other artifact or creature you've sacrificed this turn.