Is Kavaron Harrier legal in Standard, Modern, and Commander?

Kavaron Harrier is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Kavaron Harrier

Q: What type of card is Kavaron Harrier?

Kavaron Harrier is an Artifact Creature — Robot Soldier. Its oracle text reads: "Whenever this creature attacks, you may pay {2}. If you do, create a 2/2 colorless Robot artifact creature token that's tapped and attacking. Sacrifice that token at end of combat. *Once the security for a moxite mine, now a ghost in a hollowed-out cavern.* Power/Toughness: 2/1"

Artifact Creature — Robot Soldier

Whenever this creature attacks, you may pay . If you do, create a 2/2 colorless Robot artifact creature token that's tapped and attacking. Sacrifice that token at end of combat.