Zack couldn't use his True Magic, but he could chase them and fight them directly with no tricks and soon he decided to do that. Zack appeared behind the enemies using the Teleport effect of the sword and didn't hesitate in swinging down the weapon violently at them.
The magic build was fun, but the physical build, focused on gaining as much XP as possible, was even more satisfying. Some beasts didn't recognize Zack since he was hidden in the middle of the chaos of the battlefield before and tried to face him, but soon they were blown away by his attacks.
After losing a few hundred of them in no time, the monsters soon focused on running away… the lava golems began to self-destruct when he was about to attack them, and the blasts of the explosions pushed him away from the main army of monsters.
"They are definitely being controlled by a single guy," Zack thought.