Is Jubilation legal in Standard, Modern, and Commander?

Jubilation is legal in: Legacy, Vintage, Commander.

What type of card is Jubilation?

Jubilation is a Creature — Elemental Incarnation. Its oracle text reads: "When this creature enters, creatures you control get +2/+2 and gain trample until end of turn. Encore {7}{G}{G} ({7}{G}{G}, 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.)"

Jubilation

Creature — Elemental Incarnation

When this creature enters, creatures you control get +2/+2 and gain trample until end of turn.

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.)