Ainz read through the list, but couldn't find anything that piqued his interest or that interesting.
As he went through the list he saw a rank 5 spell that was called Demonic Armor which he could use, however, when he looked at the tag he realized, that even though he had enough credit crystals to purchase he needed to accumulate thousands of merits points to be able to purchase it instead.
However, he didn't think about it too much since he had wyvern transformation which worked in a similar way as the Demonic armor.
The others were mostly supportive type spells, while the rest that were not, needed hundreds of thousands of merits points for him to be able to purchase them.
Ainz couldn't help but frown, even though he already expected it, he didn't think the restriction would be that high, after all, if anyone could purchase all the techniques in the library vault there would be no need to attend the academy.