The upgrade of the Disintegration Spell was as Du You had expected, except that the attribute rules had seen a significant upgrade. Previously, he needed to use the Disintegration Spell three times to decompose a sacrificial offering into fragments.
Now, he should be able to do it in a single go, as long as it isn't blocked by special defenses, the sacrificial offering would not be able to withstand it. Moreover, the fragments that are formed now should be much smaller than before.
The heavily armed warriors that used to give him a headache, if they were still of the previous level, he could now decompose their defenses in one move without the Dissolution Spell. There was even a possibility that he could severely damage them in a single move.
After upgrading the Disintegration Spell to the 11th level peak, next was the Spell Splitting Skill. What Du You didn't expect was that after being upgraded to the 11th level, the Spell Splitting Skill didn't split into 11 separate spells.