With the game progressing and mobs being changed occasionally, could there be monster book that says which items the monsters drop?

For example, I'm looking / have been looking for a skull shield for a few days, and going on the lists available online seem to be outdated.

If I remember correctly, the old monster book used to have a drop list of a certain mob if you have collected the card for it.

Tldr: monster or item drop list request to save time potentially farming the wrong mobs

Edit: could include it in the maple guide section of the website to keep it out of the game itself