Jack promptly cast the two spells in his arsenal and then continued with standard range attacks after it, while his right hand never stopped slashing. In this way, he practically doubled his damage output.
Jeanny was busy fighting against the Giant Ants that were coming at her, so she was not aware of the change in Jack's fighting style at first. But the light from the Mana Bullet and Energy Bolts eventually caught her attention and made her look.
When she finally registered Jack was fighting with both a sword and a magic staff, she was first confused. Then she saw him shooting range attacks from his staff. When Jack cast Mana Bullet again, she completely froze. She was awoken from her daze after one of the Giant Ants fighting her bit into her leg. The pain told her that she was not dreaming. She immediately stabbed the Giant Ant that had bitten her.