Is Rimefeather Owl legal in Standard, Modern, and Commander?

Rimefeather Owl is legal in: Modern, Legacy, Vintage, Commander.

Rimefeather Owl

Q: What type of card is Rimefeather Owl?

Rimefeather Owl is a Snow Creature — Bird. Its oracle text reads: "Flying Rimefeather Owl's power and toughness are each equal to the number of snow permanents on the battlefield. {1}{S}: Put an ice counter on target permanent. Permanents with ice counters on them are snow. Power/Toughness: */*"