Is Oath of Ghouls legal in Standard, Modern, and Commander?

Oath of Ghouls is legal in: Legacy, Vintage, Commander.

Oath of Ghouls

Q: What type of card is Oath of Ghouls?

Oath of Ghouls is an Enchantment. Its oracle text reads: "At the beginning of each player's upkeep, that player chooses target player whose graveyard has fewer creature cards in it than their graveyard does and is their opponent. The first player may return a creature card from their graveyard to their hand."

Enchantment

At the beginning of each player's upkeep, that player chooses target player whose graveyard has fewer creature cards in it than their graveyard does and is their opponent. The first player may return a creature card from their graveyard to their hand.

Set Exodus

Rarity Rare

Mana Value 2

Artist Brom

Collector # 69

Scryfall Gatherer