In the next couple of days—after the news of the Feradith Family's decision, Luciviar juggled his days between training and searching for Thalia. He wanted to know more about the situation and Thalia was a great source of information.
Going after Elira might've been a stretch for him.
Considering that he has no connection with her other than resentment, he realizes that it was a bad idea.
Because of that he changed target and decided to aim for Thalia instead.
Unlike Elira who Lucivar has barely talked to, Thalia was entirely different—he could make use of her.
But then again, he approached Elira because of the Mischief Panes.
He used one of the higher essence bars to purchase an opportunity and it the green light went to Elira.
Surely, his answer to this problem lies in Elira.
Because of that, he went to see if he could probe her but it ended up backfiring a little.