Is Locked in the Cemetery legal in Standard, Modern, and Commander?

Locked in the Cemetery is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Locked in the Cemetery

Q: What type of card is Locked in the Cemetery?

Locked in the Cemetery is an Enchantment — Aura. Its oracle text reads: "Enchant creature When this Aura enters, if there are five or more cards in your graveyard, tap enchanted creature. Enchanted creature doesn't untap during its controller's untap step. *"Help! I'm not a zombie! Let me out!"*"