Is Rakshasa Debaser legal in Standard, Modern, and Commander?

Rakshasa Debaser is legal in: Legacy, Vintage, Commander.

What type of card is Rakshasa Debaser?

Rakshasa Debaser is a Creature — Demon. Its oracle text reads: "Whenever this creature attacks, put target creature card from defending player's graveyard onto the battlefield under your control. Encore {6}{B}{B} ({6}{B}{B}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)"

Rakshasa Debaser

Creature — Demon

Whenever this creature attacks, put target creature card from defending player's graveyard onto the battlefield under your control.

Encore (, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)