Is Undercity Informer legal in Standard, Modern, and Commander?

Undercity Informer is legal in: Modern, Legacy, Vintage, Commander. It is banned in: Pioneer.

Undercity Informer

Q: What type of card is Undercity Informer?

Undercity Informer is a Creature — Human Rogue. Its oracle text reads: "{1}, Sacrifice a creature: Target player reveals cards from the top of their library until they reveal a land card, then puts those cards into their graveyard."

Creature — Human Rogue

, Sacrifice a creature: Target player reveals cards from the top of their library until they reveal a land card, then puts those cards into their graveyard.