Is Skirk Commando legal in Standard, Modern, and Commander?

Skirk Commando is legal in: Legacy, Vintage, Commander, Pauper.

Skirk Commando

Q: What type of card is Skirk Commando?

Skirk Commando is a Creature — Goblin. Its oracle text reads: "Whenever this creature deals combat damage to a player, you may have it deal 2 damage to target creature that player controls. Morph {2}{R} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)"