Is Skulking Ghost legal in Standard, Modern, and Commander?

Skulking Ghost is legal in: Legacy, Vintage, Commander, Pauper.

What type of card is Skulking Ghost?

Skulking Ghost is a Creature — Spirit. Its oracle text reads: "FlyingWhen Skulking Ghost becomes the target of a spell or ability, sacrifice it."

Creature — Spirit

Flying<br>When Skulking Ghost becomes the target of a spell or ability, sacrifice it.

Set Mirage

Rarity Common

Artist Robert Bliss

Creature Flying Commander Pauper Legacy