Is Shelob's Ambush legal in Standard, Modern, and Commander?

Shelob's Ambush is legal in: Modern, Legacy, Vintage, Commander, Pauper, Historic.

Shelob's Ambush

Q: What type of card is Shelob's Ambush?

Shelob's Ambush is an Instant. Its oracle text reads: "Target creature gets +1/+2 and gains deathtouch until end of turn. Create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.")"

Instant

Target creature gets +1/+2 and gains deathtouch until end of turn. Create a Food token. (It's an artifact with ", , Sacrifice this token: You gain 3 life.")