Is Winter, Cursed Rider legal in Standard, Modern, and Commander?

Winter, Cursed Rider is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Historic.

What type of card is Winter, Cursed Rider?

Winter, Cursed Rider is a Legendary Creature — Human Warlock. Its oracle text reads: "Ward—Pay 2 life. Artifacts you control have "Ward—Pay 2 life." Exhaust — {2}{U}{B}, {T}, Exile X artifact cards from your graveyard: Each other nonartifact creature gets -X/-X until end of turn. (Activate each exhaust ability only once.) Power/Toughness: 3/2"

Winter, Cursed Rider

Legendary Creature — Human Warlock

Ward—Pay 2 life.

Artifacts you control have "Ward—Pay 2 life."

Exhaust — , , Exile X artifact cards from your graveyard: Each other nonartifact creature gets -X/-X until end of turn. (Activate each exhaust ability only once.)