Is Merieke Ri Berit legal in Standard, Modern, and Commander?

Merieke Ri Berit is legal in: Modern, Legacy, Vintage, Commander.

Merieke Ri Berit

Q: What type of card is Merieke Ri Berit?

Merieke Ri Berit is a Legendary Creature — Human. Its oracle text reads: "Merieke Ri Berit doesn't untap during your untap step.{T}: Gain control of target creature for as long as you control Merieke Ri Berit. When Merieke Ri Berit leaves the battlefield or becomes untapped, destroy that creature. It can't be regenerated."

Legendary Creature — Human

Merieke Ri Berit doesn't untap during your untap step.<br>: Gain control of target creature for as long as you control Merieke Ri Berit. When Merieke Ri Berit leaves the battlefield or becomes untapped, destroy that creature. It can't be regenerated.