Is Radagast, Wizard of Wilds legal in Standard, Modern, and Commander?

Radagast, Wizard of Wilds is legal in: Legacy, Vintage, Commander.

What type of card is Radagast, Wizard of Wilds?

Radagast, Wizard of Wilds is a Legendary Creature — Avatar Wizard. Its oracle text reads: "Ward {1} Beasts and Birds you control have ward {1}. Whenever you cast a spell with mana value 5 or greater, choose one — • Create a 3/3 green Beast creature token. • Create a 2/2 blue Bird creature token with flying. Power/Toughness: 3/5"