Is Frillscare Mentor legal in Standard, Modern, and Commander?

Frillscare Mentor is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Frillscare Mentor

Q: What type of card is Frillscare Mentor?

Frillscare Mentor is a Creature — Human Warrior. Its oracle text reads: "When this creature enters, put a menace counter on target non-Human creature you control. (It can't be blocked except by two or more creatures.) {2}{R}, {T}: Put a +1/+1 counter on each creature you control with menace. *Fortune favors the ferocious.* Power/Toughness: 3/2"