Is Jade Idol legal in Standard, Modern, and Commander?

Jade Idol is legal in: Modern, Legacy, Vintage, Commander.

Jade Idol

Q: What type of card is Jade Idol?

Jade Idol is an Artifact. Its oracle text reads: "Whenever you cast a Spirit or Arcane spell, this artifact becomes a 4/4 Spirit artifact creature until end of turn. *Before the Kami War, the shishi were symbolic guardians, protecting the shrines where they stood. But after the kami turned on the material world, shishi began pouncing from their perches to attack would-be supplicants.*"

Artifact

Whenever you cast a Spirit or Arcane spell, this artifact becomes a 4/4 Spirit artifact creature until end of turn.

*Before the Kami War, the shishi were symbolic guardians, protecting the shrines where they stood. But after the kami turned on the material world, shishi began pouncing from their perches to attack would-be supplicants.*

Set Champions of Kamigawa

Rarity Uncommon

Mana Value 4

Artist Ben Thompson

Collector # 256

Scryfall