I believe that everyone knows about the exclusive spells you can obtain from the Loremaster. There is also the hidden bosses that drop unique spells like Catch of the Day, Burning Rampage, and Sacred Charge. (Monster Mash is apart of this idea but it is an item card, so far.) I find it adorable that those spells have a buddy system. Even though three of those spells have one of the summon creatures propelled at the target. But what about Balance and Ice? (I have an idea for Balance, but not for Ice yet.) Think about this: Ra and Power Nova. After casting, Ra emerges from the radiating sun. Looks down upon his target. Just as he's about to slam his staff down, Power Nova zooms out of nowhere at the head of the sun god. He drops everything in his hands only is catch the nova. Quickly rethinking his plan of attack, he swings the nova and rolls it towards his target. After an exhilarating explosion, Ra does a single fist pump with a smile across his beak. Now for the card itself, I have no idea how to name it or to give it any specific damage. Maybe make it a single target spell with a -50% Black Mantle? That the best I can think of.