Is Simian Simulacrum legal in Standard, Modern, and Commander?

Simian Simulacrum is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

What type of card is Simian Simulacrum?

Simian Simulacrum is an Artifact Creature — Ape. Its oracle text reads: "When this creature enters, put two +1/+1 counters on target creature you control. Unearth {2}{G}{G} ({2}{G}{G}: 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.)"

Simian Simulacrum

Artifact Creature — Ape

When this creature enters, put two +1/+1 counters on target creature you control.

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.)