Is Loyal Retainers legal in Standard, Modern, and Commander?

Loyal Retainers is legal in: Legacy, Vintage, Commander.

Loyal Retainers

Q: What type of card is Loyal Retainers?

Loyal Retainers is a Creature — Human Advisor. Its oracle text reads: "Sacrifice this creature: Return target legendary creature card from your graveyard to the battlefield. Activate only during your turn, before attackers are declared."

Creature — Human Advisor

Sacrifice this creature: Return target legendary creature card from your graveyard to the battlefield. Activate only during your turn, before attackers are declared.

Set Commander Masters

Rarity Mythic Rare

Mana Value 3

Artist Kieran Yanner

Collector # 39

Scryfall Gatherer