Is Nemesis Phoenix legal in Standard, Modern, and Commander?

Nemesis Phoenix is legal in: Legacy, Vintage, Commander.

Nemesis Phoenix

Q: What type of card is Nemesis Phoenix?

Nemesis Phoenix is a Creature — Phoenix. Its oracle text reads: "Flying {2}{R}: Return this card from your graveyard to the battlefield tapped and attacking. Activate only during the declare attackers step and only if you're attacking two or more opponents."

Creature — Phoenix

Flying

: Return this card from your graveyard to the battlefield tapped and attacking. Activate only during the declare attackers step and only if you're attacking two or more opponents.