Is Jawbone Skulkin legal in Standard, Modern, and Commander?

Jawbone Skulkin is legal in: Modern, Legacy, Vintage, Commander, Pauper.

Jawbone Skulkin

Q: What type of card is Jawbone Skulkin?

Jawbone Skulkin is an Artifact Creature — Scarecrow. Its oracle text reads: "{2}: Target red creature gains haste until end of turn. *"Ah, skull of shrew—a very potent substance. In powdered form, it gives thrice the zing of noggle hoof pulp." —Boghald, Barrenton medic* Power/Toughness: 1/1"