[Collecting a former goddess' blood sample? Good thinking. Finally, your stats are really helping you.]
"Yeah. Since I can't use mana to summon my domain, I thought at least I could some of her blood and use it to make some blood runes for my arm. I'll do the same with Hercules and Tiamut when I get back."
[Greed is a lovely thing.]
"Hey! It's not greed if I want to get stronger... wait it is... in a way..."
Arnold took out another flask and filled it with Satina's blood to the brim. He was aiming to extract her most ridiculous ability that became a pain in his butt during the dungeon run. Her signature ability that was known as Mana negation.
Basically, this ability formed a bubble around the user within which everyone aside from the user would not be able to use any mana associated abilities. If the user had enough control over the ability, they could even stop the usage of specific abilities, as Satina had done previously during his trial.