Is Copper Tablet legal in Standard, Modern, and Commander?

Copper Tablet is legal in: Legacy, Vintage, Commander.

What type of card is Copper Tablet?

Copper Tablet is an Artifact. Its oracle text reads: "At the beginning of each player's upkeep, Copper Tablet deals 1 damage to that player."

Artifact

At the beginning of each player's upkeep, Copper Tablet deals 1 damage to that player.

Set Limited Edition Alpha

Rarity Uncommon

Artist Amy Weber

Artifact Commander Legacy Vintage