Is Court of Ambition legal in Standard, Modern, and Commander?

Court of Ambition is legal in: Legacy, Vintage, Commander.

Court of Ambition

Q: What type of card is Court of Ambition?

Court of Ambition is an Enchantment. Its oracle text reads: "When this enchantment enters, you become the monarch. At the beginning of your upkeep, each opponent loses 3 life unless they discard a card. If you're the monarch, instead each opponent loses 6 life unless they discard two cards."

Enchantment

When this enchantment enters, you become the monarch.

At the beginning of your upkeep, each opponent loses 3 life unless they discard a card. If you're the monarch, instead each opponent loses 6 life unless they discard two cards.

Set Commander Legends

Rarity Rare

Mana Value 4

Artist Ravenna Tran

Collector # 114

Scryfall Gatherer