Is Kathari Screecher legal in Standard, Modern, and Commander?

Kathari Screecher is legal in: Modern, Legacy, Vintage, Commander, Pauper.

Kathari Screecher

Q: What type of card is Kathari Screecher?

Kathari Screecher is a Creature — Bird Soldier. Its oracle text reads: "Flying Unearth {2}{U} ({2}{U}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)"

Creature — Bird Soldier

Flying

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Set Shards of Alara

Rarity Common

Mana Value 3

Artist Pete Venters

Collector # 47

Scryfall Gatherer