Is Unchained Berserker legal in Standard, Modern, and Commander?

Unchained Berserker is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Unchained Berserker

Q: What type of card is Unchained Berserker?

Unchained Berserker is a Creature — Human Berserker. Its oracle text reads: "Protection from white (This creature can't be blocked, targeted, dealt damage, enchanted, or equipped by anything white.) This creature gets +2/+0 as long as it's attacking. *Sathros turned his restraints to revenge.* Power/Toughness: 1/1"