Is Giant Shark legal in Standard, Modern, and Commander?

Giant Shark is legal in: Legacy, Vintage, Commander, Pauper.

Giant Shark

Q: What type of card is Giant Shark?

Giant Shark is a Creature — Shark. Its oracle text reads: "Giant Shark can't attack unless defending player controls an Island.Whenever Giant Shark blocks or becomes blocked by a creature that has been dealt damage this turn, Giant Shark gets +2/+0 and gains trample until end of turn.When you control no Islands, sacrifice Giant Shark."

Creature — Shark

Giant Shark can't attack unless defending player controls an Island.<br>Whenever Giant Shark blocks or becomes blocked by a creature that has been dealt damage this turn, Giant Shark gets +2/+0 and gains trample until end of turn.<br>When you control no Islands, sacrifice Giant Shark.

Set The Dark

Rarity Common

Artist Tom Wänerstrand