Is Abyssal Harvester legal in Standard, Modern, and Commander?

Abyssal Harvester is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Abyssal Harvester

Q: What type of card is Abyssal Harvester?

Abyssal Harvester is a Creature — Demon Warlock. Its oracle text reads: "{T}: Exile target creature card from a graveyard that was put there this turn. Create a token that's a copy of it, except it's a Nightmare in addition to its other types. Then exile all other Nightmare tokens you control."

Creature — Demon Warlock

: Exile target creature card from a graveyard that was put there this turn. Create a token that's a copy of it, except it's a Nightmare in addition to its other types. Then exile all other Nightmare tokens you control.