Is Rathi Intimidator legal in Standard, Modern, and Commander?

Rathi Intimidator is legal in: Legacy, Vintage, Commander, Pauper.

Rathi Intimidator

Q: What type of card is Rathi Intimidator?

Rathi Intimidator is a Creature — Phyrexian Horror Mercenary. Its oracle text reads: "Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) {2}, {T}: Search your library for a Mercenary permanent card with mana value 2 or less, put it onto the battlefield, then shuffle."