Is Hill Gigas legal in Standard, Modern, and Commander?

Hill Gigas is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Hill Gigas

Q: What type of card is Hill Gigas?

Hill Gigas is a Creature — Giant. Its oracle text reads: "Trample, haste Mountaincycling {2} ({2}, Discard this card: Search your library for a Mountain card, reveal it, put it into your hand, then shuffle.) *"This place is dangerous! Be careful!" —Zozo resident* Power/Toughness: 5/4"