Is Confront the Unknown legal in Standard, Modern, and Commander?

Confront the Unknown is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Confront the Unknown

Q: What type of card is Confront the Unknown?

Confront the Unknown is an Instant. Its oracle text reads: "Investigate, then target creature gets +1/+1 until end of turn for each Clue you control. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.") *"Never flinch from the truth." —Thalia, Guardian of Thraben*"

Instant

Investigate, then target creature gets +1/+1 until end of turn for each Clue you control. (Create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.")