Is Stand United legal in Standard, Modern, and Commander?

Stand United is legal in: Legacy, Vintage, Commander, Pauper, Historic.

Stand United

Q: What type of card is Stand United?

Stand United is an Instant. Its oracle text reads: "Target creature gets +2/+2 until end of turn. If it's an Ally, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)"

Instant

Target creature gets +2/+2 until end of turn. If it's an Ally, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Set Avatar: The Last Airbender Eternal

Rarity Common

Mana Value 2

Artist Robin Har

Collector # 149

Scryfall