Is Curious Inquiry legal in Standard, Modern, and Commander?

Curious Inquiry is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Curious Inquiry

Q: What type of card is Curious Inquiry?

Curious Inquiry is an Enchantment — Aura. Its oracle text reads: "Enchant creature Enchanted creature gets +1/+1 and has "Whenever this creature deals combat damage to a player, investigate." (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.") *Each time he replayed the attack in his mind, new details emerged.*"

Enchantment — Aura

Enchant creature

Enchanted creature gets +1/+1 and has "Whenever this creature deals combat damage to a player, investigate." (Create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.")