Is Squishy Sphinx Ninja legal in Standard, Modern, and Commander?

Squishy Sphinx Ninja is legal in: Commander.

What type of card is Squishy Sphinx Ninja?

Squishy Sphinx Ninja is a Stickers. Its oracle text reads: "{TK}{TK} — Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.) {TK}{TK}{TK}{TK} — Provoke (Whenever this creature attacks, you may have target creature defending player controls untap and block it if able.) {TK}{TK}{TK} — 5/3 {TK}{TK}{TK}{TK}{TK} — 7/7"