Individually, the Royal Guards were not particularly valuable in terms of the experience they provided to someone like Eren.
Still, the sheer quantity of Guards he had to eliminate meant that the small amount of experience gained from each one accumulated rapidly.
This snowballing effect of the experience points allowed him to gather a significant amount of experience, which in turn allowed him to cross the next great wall in his leveling.
It couldn't have come at a better time either, since what he needed the most right now was strength.
He did not have time to think about his exhaustion or how much blood he had shed at the moment. His entire attention was caught by the statue screen.
..................
[Name: Eren (Ren Necroline)]
[Level: 41]