Seeing that the designs of runes suitable for shadow wizards were present in the library, he thought, 'It's just like I expected. The library has them. The one time I needed it the most, it didn't let me down.'
However, the design of all the runes was locked behind a freaking paywall. They could only be unlocked by using arcane points, and Val had a bunch of them. But having a lot didn't mean he should waste them on things that weren't useful to him.
Instead of buying them in bulk, he decided to get one that was the most suitable for him.
Unknowingly, he had saved himself from a lot of trouble. After all, as he was a level 1 Shadow wizard, he could form only one rune in his arcane heart, and once a rune was formed, it was permanent. Self-destruct was possible, but it will harm the arcane heart, and the harm would be irreversible.