The Divine attribute was originally created with the "Egyptian God Cards" in mind, and over the years, the total number of these cards has doubled to include six cards with the Divine attribute
Later in the game, stuff like Ambition's Cost or Seize the Spotlight or Syphon Mind could allow you a partial refill along with playing a second spell played from the new cards
if you have gained life, an Infusion spell will only be cast with its Infusion effects
Eldlich the Mad Golden Lord X LIGHT Level 10 [ ZombieFusionEffect ] ATK 3800 DEF 3500 1 "Eldlich" monster + 1 Level 5 or higher Zombie monster This card's name becomes "Eldlich the Golden Lord" while on the field
For a red deck, these discarded cards are most likely going to be madness cards, of which there are plenty of powerful choices
The problem would have been resolved with printing pure Basic Energies, commons, uncommons and likely also rares sheets with the same design as those later used for Unlimited in appropriate quantities taking the existing surplus into account