Is Immovable Rod legal in Standard, Modern, and Commander?

Immovable Rod is legal in: Legacy, Vintage, Commander.

Immovable Rod

Q: What type of card is Immovable Rod?

Immovable Rod is an Artifact. Its oracle text reads: "You may choose not to untap this artifact during your untap step. Whenever this artifact becomes untapped, venture into the dungeon. {3}{W}, {T}: For as long as this artifact remains tapped, another target permanent loses all abilities and can't attack or block."