Urursu, Sentry of Realms

Urursu, Sentry of Realms can be cast from your graveyard or exile as long as you pay {4} more to cast it.
If Urursu or another creature would enter the battlefield from anywhere other than the command zone, you may cast target instant or sorcery card from your graveyard or exile without paying its mana cost. If an instant or sorcery would be cast this way, shuffle it into your library instead.