Arthur looked at the giant, who was almost passing out after getting its life drained by the vines.
He went towards it, jumped, and stopped at the giant's shoulder. Then, Arthur placed both of his hands on the giant's head and channeled his mana.
It was not a spell, but an attack that all mages knew. Almost impossible to do during a fight, as the enemy had to be standing still, and weak to not fight back.
The reason behind that attack was to channel the users inside the brain of the enemy to either get their memories, make them obey the caster, or just make them pass out.
Arthur wanted the giant to first pass out, as that would make doing the other two things way easier. Within 10 seconds, the giant passed out.
After that, a youth returned to the city, carrying a giant. It weighed a lot, but with the strength Arthur had, it was within his powers to lift that giant and carry it around.