Mo Hua pondered for a moment, then answered:
"I felt that the power of a single Fireball Technique wasn't sufficient, so I wanted to 'fuse' two Fireball Techniques together to enhance the power, and then... it exploded..."
The Elder of Daoist Law frowned, "Nonsense, who does 'fusion' like that?"
Mo Hua replied humbly, "Then how should one fuse them?"
"You've misunderstood," the Elder of Daoist Law shook his head. "So-called spell 'fusion' isn't about mixing two spells together like dough..."
"Spell fusion is essentially the fusion of skill patterns."
"Moreover, it's not about fusing after casting; rather, it's about having a 'fused' skill pattern before even casting. It just appears as if it's 'fusing'..."
Mo Hua had an epiphany.
He remembered how Grandpa Gui showed him the Fireball Technique, consecutively condensing the fire threads and then weaving them to form the spell.
Essentially, it wasn't about merging several Fireball Techniques.