Is Pestilence Rats legal in Standard, Modern, and Commander?

Pestilence Rats is legal in: Legacy, Vintage, Commander, Pauper.

Pestilence Rats

Q: What type of card is Pestilence Rats?

Pestilence Rats is a Creature — Rat. Its oracle text reads: "Pestilence Rats's power is equal to the number of other Rats on the battlefield. (For example, as long as there are two other Rats on the battlefield, Pestilence Rats's power and toughness are 2/3.)"

Creature — Rat

Pestilence Rats's power is equal to the number of other Rats on the battlefield. (For example, as long as there are two other Rats on the battlefield, Pestilence Rats's power and toughness are 2/3.)

Set Ice Age

Rarity Common

Artist Jeff A. Menges