Is Accursed Duneyard legal in Standard, Modern, and Commander?

Accursed Duneyard is legal in: Legacy, Vintage, Commander.

Accursed Duneyard

Q: What type of card is Accursed Duneyard?

Accursed Duneyard is a Land. Its oracle text reads: "{T}: Add {C}. {2}, {T}: Regenerate target Shade, Skeleton, Specter, Spirit, Vampire, Wraith, or Zombie. (The next time it would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)"

Land

: Add .

, : Regenerate target Shade, Skeleton, Specter, Spirit, Vampire, Wraith, or Zombie. (The next time it would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)