Is Lore Drakkis legal in Standard, Modern, and Commander?

Lore Drakkis is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Lore Drakkis

Q: What type of card is Lore Drakkis?

Lore Drakkis is a Creature — Lizard Beast. Its oracle text reads: "Mutate {U/R}{U/R} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.) Whenever this creature mutates, return target instant or sorcery card from your graveyard to your hand. Power/Toughness: 2/3"

Creature — Lizard Beast

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)