Is Urborg Panther legal in Standard, Modern, and Commander?

Urborg Panther is legal in: Legacy, Vintage, Commander, Pauper.

Urborg Panther

Q: What type of card is Urborg Panther?

Urborg Panther is a Creature — Nightstalker Cat. Its oracle text reads: "{B}, Sacrifice Urborg Panther: Destroy target creature blocking Urborg Panther.Sacrifice a creature named Feral Shadow, a creature named Breathstealer, and Urborg Panther: Search your library for a card named Spirit of the Night, put that card onto the battlefield, then shuffle."

Creature — Nightstalker Cat

, Sacrifice Urborg Panther: Destroy target creature blocking Urborg Panther.<br>Sacrifice a creature named Feral Shadow, a creature named Breathstealer, and Urborg Panther: Search your library for a card named Spirit of the Night, put that card onto the battlefield, then shuffle.

Set Mirage

Rarity Common

Artist Cliff Nielsen