Is Archon of the Triumvirate legal in Standard, Modern, and Commander?

Archon of the Triumvirate is legal in: Modern, Pioneer, Legacy, Vintage, Commander.

Archon of the Triumvirate

Q: What type of card is Archon of the Triumvirate?

Archon of the Triumvirate is a Creature — Archon. Its oracle text reads: "Flying Whenever this creature attacks, detain up to two target nonland permanents your opponents control. (Until your next turn, those permanents can't attack or block and their activated abilities can't be activated.) Power/Toughness: 4/5"

Creature — Archon

Flying

Whenever this creature attacks, detain up to two target nonland permanents your opponents control. (Until your next turn, those permanents can't attack or block and their activated abilities can't be activated.)

Power/Toughness: 4/5

Set Return to Ravnica

Rarity Rare

Mana Value 7

Artist David Rapoza

Collector # 142

Scryfall