On 2 and 3 disks i met a strange monster at Alexandria's Castle's left library. You can walk to the left-bottom bookshelf and see "?". Answering 2 questions will begin the battle with a giant book "Alexandria". It has some powerfull spells like knife and page storm. When it's attacked it opens at random pages, and as I noticed when it opens at pages above 110 there is a blue Tantarian (there is a 4-level card with it).
The question is how to kill it and its stats, items, etc.