A Combination Scroll that explains how to summon 1x Powerful Soul Essence.
Where they are summoned is not clearly explained.

[Required Materials]
200x Shadowdecon
200x Zelunium

[Powerful Soul Essence]
A essence that is said to have been made by refining the soul of a powerful monster.
It is not known who can do it and how.

[iRO Description]
Not Available