The wizard casted the Corporealize Magick when Vlad gave the signal. The final boss Grimnir then appeared and gave his usual speech of being unstoppable and stuff. The wizard wouldn't have understood anything he said either if it weren't for the subtitles that translated the Swedish-like language. Finally the battle began, and the wizard wasted no time casting Vortex. 

Grimnir died instantly, and three ghostly beings appeared, congratulating his victory and saying they were having a party to celebrate, but the wizard could not cast any magicks to get there. The wizard then jumped and was suspended in the air, and the victory music played. After the music ended, he landed back down on the ground, but nothing else happened. After a brief moment, the menu screen popped up, and the wizard was back at the castle on the first level.