Is Drag to the Underworld legal in Standard, Modern, and Commander?

Drag to the Underworld is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

What type of card is Drag to the Underworld?

Drag to the Underworld is an Instant. Its oracle text reads: "This spell costs {X} less to cast, where X is your devotion to black. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.) Destroy target creature."

Drag to the Underworld

Instant

This spell costs less to cast, where X is your devotion to black. (Each in the mana costs of permanents you control counts toward your devotion to black.)