Is Wingshield Agent legal in Standard, Modern, and Commander?

Wingshield Agent is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Wingshield Agent

Q: What type of card is Wingshield Agent?

Wingshield Agent is a Creature — Human Soldier. Its oracle text reads: "This creature enters with a shield counter on it. (If it would be dealt damage or destroyed, remove a shield counter from it instead.) Whenever this creature attacks, up to one other target creature gains flying until end of turn. Power/Toughness: 2/3"