"Useless. What just happened?" Eren asked, staying still in the same spot, unmoving, as he watched the monster fight his clone.
[It seems that the Thunderclaw has detected your presence and awareness during the fight.]
"And how exactly is that?" he asked in a displeased tone. Hearing that, the system quickly answered with tremble.
[F-From the scents. It appears the monster has begun to notice that your clone isn't real each time it destroys one. Given how close you are and its rank as a level 5 monster, it's highly–]
"Skip."
Useless immediately shut up after hearing that word again and fell silent.