Is Guard Dogs legal in Standard, Modern, and Commander?

Guard Dogs is legal in: Legacy, Vintage, Commander.

Guard Dogs

Q: What type of card is Guard Dogs?

Guard Dogs is a Creature — Dog. Its oracle text reads: "{2}{W}, {T}: Choose a permanent you control. Prevent all combat damage target creature would deal this turn if it shares a color with that permanent. *"A good guard is alert. A great guard is also loyal." —Benalish kennelmaster* Power/Toughness: 2/2"