Rex already expected that this might be the case, but it still surprises him to know.
Noticing the indomitable curse powers that Calidora is excluding right now got Rex thinking that she might be using the Eternal Curse to reach this high level. But there's still a clear question inside his head.
'What's her reason to focus on curse powers instead of her Vampiric powers...?'
Calidora definitely wants to get strong like any other living creature, yet she chooses to follow the path of cursed energy. Despite possessing one of the strongest Supernatural bloodlines, she instead chooses another path.
Underneath her maniacal appearance, there should be something behind this choice.
But there's no time for him to think about this now, 'One more minute, I need to sever the link between Gistella and Dealkandrax. System, can I use something to enhance my attack?'
<Yes, Annulment Elixir will be able to help the user>