Is Skullsnatcher legal in Standard, Modern, and Commander?

Skullsnatcher is legal in: Modern, Legacy, Vintage, Commander, Pauper, Historic.

Skullsnatcher

Q: What type of card is Skullsnatcher?

Skullsnatcher is a Creature — Rat Ninja. Its oracle text reads: "Ninjutsu {B} ({B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Whenever this creature deals combat damage to a player, exile up to two target cards from that player's graveyard. Power/Toughness: 2/1"