Is Hivis of the Scale legal in Standard, Modern, and Commander?

Hivis of the Scale is legal in: Legacy, Vintage, Commander.

Hivis of the Scale

Q: What type of card is Hivis of the Scale?

Hivis of the Scale is a Legendary Creature — Lizard Shaman. Its oracle text reads: "You may choose not to untap Hivis of the Scale during your untap step.{T}: Gain control of target Dragon for as long as you control Hivis and Hivis remains tapped."

Legendary Creature — Lizard Shaman

You may choose not to untap Hivis of the Scale during your untap step.<br>: Gain control of target Dragon for as long as you control Hivis and Hivis remains tapped.