Is Innocuous Researcher legal in Standard, Modern, and Commander?

Innocuous Researcher is legal in: Legacy, Vintage, Commander.

Innocuous Researcher

Q: What type of card is Innocuous Researcher?

Innocuous Researcher is a Creature — Centaur Detective. Its oracle text reads: "Parley — Whenever this creature attacks, each player reveals the top card of their library. For each nonland card revealed this way, you investigate. Then each player draws a card. At the beginning of your end step, you may untap all lands you control. If you do, you can't cast spells until your next turn."

Creature — Centaur Detective

Parley — Whenever this creature attacks, each player reveals the top card of their library. For each nonland card revealed this way, you investigate. Then each player draws a card.

At the beginning of your end step, you may untap all lands you control. If you do, you can't cast spells until your next turn.

Set Murders at Karlov Manor Commander

Rarity Rare

Mana Value 4

Artist Simon Dominic

Collector # 38

Scryfall Gatherer