Rexion had already attained Light Mastery level 1.
And previously, when all the Monsters were training for attribute energy control, Rexion had made progress, so after fighting today, Rexion's Bloodscript Mastery reached level 2.
It was a strange attribute, and John had a full interest in it as he also had Blood affinity, and he kind of wanted to turn his simple Blood mastery into a variant—Bloodscript mastery.
This attribute was related to Blood as it applied characteristics of Blood according to levels of mastery, but it also displayed the power of creation in a unique way.
It was just as its name suggested, Bloodscript. This attribute could behave in any manner, as long as it has a catalyst and instruction.
After Rexion gained Light attributed in Silver-rank, Bloodscript automatically upgraded in a weird sense as its characteristics increased, affected by the Light attribute.