Is Rakshasa Gravecaller legal in Standard, Modern, and Commander?

Rakshasa Gravecaller is legal in: Modern, Pioneer, Legacy, Vintage, Commander.

Rakshasa Gravecaller

Q: What type of card is Rakshasa Gravecaller?

Rakshasa Gravecaller is a Creature — Demon. Its oracle text reads: "Exploit (When this creature enters, you may sacrifice a creature.) When this creature exploits a creature, create two 2/2 black Zombie creature tokens. *Debts to rakshasa linger beyond death.* Power/Toughness: 3/6"