In addition to having more discussions about the Mana of Proxies and Mana Crystallization, Berkah had asked the Revenant about the power of the Dryads.
Particularly in regards to how Berkah had attempted to drain the energy from trees to strengthen himself just as Zarathian and his kin had done.
In response to this, the Revenant shamelessly lowered his head and admitted to Berkah that what he and his kin had done was in fact a taboo.
He explained that in his desperation for power in order to defend his throne from the Elves and Harpies, he resorted to such a method.
Hearing this, Berkah simply nodded as if he had expected that to be the case.
For his next question, Berkah asked the Revenant about the butterfly-like form Zarathian took after his Ascension when they fought.
Since from Berkah's understanding, Ascension gives one the ability to wield two Mana Signatures, he had noticed that Zarathian did not wield a secondary ability.