Is Crown of Vigor legal in Standard, Modern, and Commander?

Crown of Vigor is legal in: Legacy, Vintage, Commander, Pauper.

Crown of Vigor

Q: What type of card is Crown of Vigor?

Crown of Vigor is an Enchantment — Aura. Its oracle text reads: "Enchant creature Enchanted creature gets +1/+1. Sacrifice this Aura: Enchanted creature and other creatures that share a creature type with it get +1/+1 until end of turn. *"Life, be my shield."*"