Is Headstone legal in Standard, Modern, and Commander?

Headstone is legal in: Legacy, Vintage, Commander, Pauper.

What type of card is Headstone?

Headstone is an Instant. Its oracle text reads: "Exile target card from a graveyard.Draw a card at the beginning of the next turn's upkeep."

Instant

Exile target card from a graveyard.<br>Draw a card at the beginning of the next turn's upkeep.

Set Homelands

Rarity Common

Artist David A. Cherry

Instant Cantrip Exile Commander Pauper Legacy