Is Combat Professor legal in Standard, Modern, and Commander?

Combat Professor is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Combat Professor

Q: What type of card is Combat Professor?

Combat Professor is a Creature — Bird Cleric. Its oracle text reads: "Flying At the beginning of combat on your turn, target creature you control gets +1/+0 and gains vigilance until end of turn. *"Before Yovus was cut down at Pranticle Peak, she performed which maneuver? Anyone? From the reading?"* Power/Toughness: 2/3"