Is Rejuvenation Chamber legal in Standard, Modern, and Commander?

Rejuvenation Chamber is legal in: Legacy, Vintage, Commander.

Rejuvenation Chamber

Q: What type of card is Rejuvenation Chamber?

Rejuvenation Chamber is an Artifact. Its oracle text reads: "Fading 2 (This artifact enters with two fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If you can't, sacrifice it.) {T}: You gain 2 life."

Artifact

Fading 2 (This artifact enters with two fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If you can't, sacrifice it.)

: You gain 2 life.