Is Disowned Ancestor legal in Standard, Modern, and Commander?

Disowned Ancestor is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Disowned Ancestor

Q: What type of card is Disowned Ancestor?

Disowned Ancestor is a Creature — Spirit Warrior. Its oracle text reads: "Outlast {1}{B} ({1}{B}, {T}: Put a +1/+1 counter on this creature. Outlast only as a sorcery.) *Long after death, the spirits of the Disowned continue to seek redemption among their Abzan kin.* Power/Toughness: 0/4"