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

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

What type of card is Kathari Bomber?

Kathari Bomber is a Creature — Bird Shaman. Its oracle text reads: "Flying When this creature deals combat damage to a player, create two 1/1 red Goblin creature tokens and sacrifice this creature. Unearth {3}{B}{R} ({3}{B}{R}: 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.) Power/Toughness: 2/2"

Kathari Bomber

Creature — Bird Shaman

Flying

When this creature deals combat damage to a player, create two 1/1 red Goblin creature tokens and sacrifice this creature.

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.)