Is A-Celestial Regulator legal in Standard, Modern, and Commander?

A-Celestial Regulator is legal in: Historic.

A-Celestial Regulator

Q: What type of card is A-Celestial Regulator?

A-Celestial Regulator is a Creature — Angel Advisor. Its oracle text reads: "Flying When Celestial Regulator enters, choose target creature you don't control and tap it. If you control a creature with a counter on it, the chosen creature doesn't untap during its controller's next untap step. Power/Toughness: 1/4"

Creature — Angel Advisor

Flying

When Celestial Regulator enters, choose target creature you don't control and tap it. If you control a creature with a counter on it, the chosen creature doesn't untap during its controller's next untap step.

Power/Toughness: 1/4

Set Streets of New Capenna

Rarity Common

Mana Value 3

Artist Mathias Kollros

Collector # A-174

Scryfall