Is Conservator legal in Standard, Modern, and Commander?

Conservator is legal in: Legacy, Vintage, Commander.

What type of card is Conservator?

Conservator is an Artifact. Its oracle text reads: "{3}, {T}: Prevent the next 2 damage that would be dealt to you this turn."

Artifact

, : Prevent the next 2 damage that would be dealt to you this turn.

Set Limited Edition Alpha

Rarity Uncommon

Artist Amy Weber

Artifact Commander Legacy Vintage