Is Cloudstone Curio legal in Standard, Modern, and Commander?

Cloudstone Curio is legal in: Modern, Legacy, Vintage, Commander.

Cloudstone Curio

Q: What type of card is Cloudstone Curio?

Cloudstone Curio is an Artifact. Its oracle text reads: "Whenever a nonartifact permanent you control enters, you may return another permanent you control that shares a permanent type with it to its owner's hand."

Artifact

Whenever a nonartifact permanent you control enters, you may return another permanent you control that shares a permanent type with it to its owner's hand.

Set Ravnica Remastered

Rarity Mythic Rare

Mana Value 3

Artist Heather Hudson

Collector # 255

Scryfall Gatherer