Is Vraska the Unseen legal in Standard, Modern, and Commander?

Vraska the Unseen is legal in: Modern, Pioneer, Legacy, Vintage, Commander.

Vraska the Unseen

Q: What type of card is Vraska the Unseen?

Vraska the Unseen is a Legendary Planeswalker — Vraska. Its oracle text reads: "+1: Until your next turn, whenever a creature deals combat damage to Vraska, destroy that creature. −3: Destroy target nonland permanent. −7: Create three 1/1 black Assassin creature tokens with "Whenever this token deals combat damage to a player, that player loses the game.""