Is Marauding Brinefang legal in Standard, Modern, and Commander?

Marauding Brinefang is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Marauding Brinefang

Q: What type of card is Marauding Brinefang?

Marauding Brinefang is a Creature — Dinosaur. Its oracle text reads: "Ward {3} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {3}.) Islandcycling {2} ({2}, Discard this card: Search your library for an Island card, reveal it, put it into your hand, then shuffle.)"