Is Composer of Spring legal in Standard, Modern, and Commander?

Composer of Spring is legal in: Legacy, Vintage, Commander.

Composer of Spring

Q: What type of card is Composer of Spring?

Composer of Spring is a Creature — Satyr Bard. Its oracle text reads: "Constellation — Whenever an enchantment you control enters, you may put a land card from your hand onto the battlefield tapped. If you control six or more enchantments, instead you may put a creature or land card from your hand onto the battlefield tapped."

Creature — Satyr Bard

Constellation — Whenever an enchantment you control enters, you may put a land card from your hand onto the battlefield tapped. If you control six or more enchantments, instead you may put a creature or land card from your hand onto the battlefield tapped.

Set Commander Masters

Rarity Rare

Mana Value 2

Artist Gaboleps

Collector # 739

Scryfall Gatherer