Is Bloodlord of Vaasgoth legal in Standard, Modern, and Commander?

Bloodlord of Vaasgoth is legal in: Modern, Legacy, Vintage, Commander.

Bloodlord of Vaasgoth

Q: What type of card is Bloodlord of Vaasgoth?

Bloodlord of Vaasgoth is a Creature — Vampire Warrior. Its oracle text reads: "Bloodthirst 3 (If an opponent was dealt damage this turn, this creature enters with three +1/+1 counters on it.) Flying Whenever you cast a Vampire creature spell, it gains bloodthirst 3."