Is Harvestguard Alseids legal in Standard, Modern, and Commander?

Harvestguard Alseids is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper.

Harvestguard Alseids

Q: What type of card is Harvestguard Alseids?

Harvestguard Alseids is an Enchantment Creature — Nymph. Its oracle text reads: "Constellation — Whenever this creature or another enchantment you control enters, prevent all damage that would be dealt to target creature this turn."

Enchantment Creature — Nymph

Constellation — Whenever this creature or another enchantment you control enters, prevent all damage that would be dealt to target creature this turn.

Set Journey into Nyx

Rarity Common

Mana Value 3

Artist Igor Kieryluk

Collector # 13

Scryfall Gatherer