Is Formidable Speaker legal in Standard, Modern, and Commander?

Formidable Speaker is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Formidable Speaker

Q: What type of card is Formidable Speaker?

Formidable Speaker is a Creature — Elf Druid. Its oracle text reads: "When this creature enters, you may discard a card. If you do, search your library for a creature card, reveal it, put it into your hand, then shuffle. {1}, {T}: Untap another target permanent."

Creature — Elf Druid

When this creature enters, you may discard a card. If you do, search your library for a creature card, reveal it, put it into your hand, then shuffle.

, : Untap another target permanent.