Is Demonic Collusion legal in Standard, Modern, and Commander?

Demonic Collusion is legal in: Modern, Legacy, Vintage, Commander.

Demonic Collusion

Q: What type of card is Demonic Collusion?

Demonic Collusion is a Sorcery. Its oracle text reads: "Buyback—Discard two cards. (You may discard two cards in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.) Search your library for a card, put that card into your hand, then shuffle."

Sorcery

Buyback—Discard two cards. (You may discard two cards in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.)

Search your library for a card, put that card into your hand, then shuffle.

Set Time Spiral

Rarity Rare

Mana Value 5

Artist Jim Nelson

Collector # 103

Scryfall