Is Bounty Hunter legal in Standard, Modern, and Commander?

Bounty Hunter is legal in: Legacy, Vintage, Commander.

What type of card is Bounty Hunter?

Bounty Hunter is a Creature — Human Archer Minion. Its oracle text reads: "{T}: Put a bounty counter on target nonblack creature. {T}: Destroy target creature with a bounty counter on it. *"Once they've marked you," Starke said, "the world is made of glass."* Power/Toughness: 2/2"