The attendants soon began withdrawing after the knight had been 'neutralized'.
So, it was now the time for him to enact his plan. Ludwig knew full well that fighting the knight head-on was utterly stupid. He wasn't strong enough, nor would any of his spells even harm the knight. but the immortal attendants were more than capable of doing that themselves. So he was going to use a borrowed knife.
In the stories and novels he had read, the hero would fight a difficult and struggle-fueled fight to defeat his powerful enemy. The plot would revolve around them obtaining a powerful item or an ability at the last second that will empower them and give them the edges they need to win their battle.
This wasn't the case, for Ludwig this was real life, and there was nothing like a sudden power-up that was going to save him. All he had is the head over his shoulders to use.