Is Brightfield Mustang legal in Standard, Modern, and Commander?

Brightfield Mustang is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Brightfield Mustang

Q: What type of card is Brightfield Mustang?

Brightfield Mustang is a Creature — Horse Mount. Its oracle text reads: "Whenever this creature attacks while saddled, untap it and put a +1/+1 counter on it. Saddle 1 (Tap any number of other creatures you control with total power 1 or more: This Mount becomes saddled until end of turn. Saddle only as a sorcery.) Power/Toughness: 3/3"

Creature — Horse Mount

Whenever this creature attacks while saddled, untap it and put a +1/+1 counter on it.

Saddle 1 (Tap any number of other creatures you control with total power 1 or more: This Mount becomes saddled until end of turn. Saddle only as a sorcery.)

Power/Toughness: 3/3

Set Aetherdrift

Rarity Common

Mana Value 4

Artist Slawomir Maniak

Collector # 5

Scryfall