Klaus had been absorbing an almost endless supply of undead monsters from the Undead Cemetery dungeon, focusing solely on increasing his Darkness Affinity.
The initial onslaught of his summoned army had decimated thousands of lower-ranked undead, providing him with a constant source of darkness affinity.
His Darkness Affinity had now reached 4.1%, a massive haul for him in just a few hours.
This rapid increase truly hammered home the importance of S-rank and higher gates,
they offered an unparalleled density of high-quality elemental essence to absorb compared to lower-ranked dungeons.
The System informed him that with this level of affinity, he could now create an SS-rank skill using his darkness element.
The monster battle in front of him was raging fiercely.
Troops from both sides were being decimated and side by side replenished at an unprecedented rate.
