Is Pharagax Giant legal in Standard, Modern, and Commander?

Pharagax Giant is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Pauper.

Pharagax Giant

Q: What type of card is Pharagax Giant?

Pharagax Giant is a Creature — Giant. Its oracle text reads: "Tribute 2 (As this creature enters, an opponent of your choice may put two +1/+1 counters on it.) When this creature enters, if tribute wasn't paid, this creature deals 5 damage to each opponent."