If neither of these happen, the game ends in a draw
You must still pay all costs and follow any timing restrictions and permissions for artifact spells you cast from your graveyard this way
But Ive read hundreds of articles about why the Reserved List is bad, and not a single one discussing its benefits
If we see combo decks with Jafar - Striking Illusionist and A Whole New World becoming popular, running this Ursula can be a good way for control decks to shut that combo down
Overall, Heidegger, Shinra Executive is an expensive and slow card to play, and can really stagger progress during gameplay , even if its abilities seem positive, making it inapt to work in this particular Magic: The Gathering Final Fantasy set
There is some stiff competition for those precious few four and above CMC cards in such deck and so this doesn't really get a look in anymore