I feel like my material "Blood" not an ideal solution. I suppose that new materials: Life Essence/Life Quintessence will be better.
I actually like the idea of blood being a recipe item

blood of sturmbeorn, blood of warbeast, etc. Lots of variety!
blood of sturmbeorn, blood of warbeast, etc. Lots of variety!
Well, only as unique ingredients for something special.
I need Essence as a common ingredient for consumables. Let's say... you kill monsters and get their magic and life energy.
For me it is important to have a final version of an ordinary loot from monsters, because it affects the spawn classes and monsters. As you know, I plan to create my own monsters for my mod. I need tests for monster health, damage, speed, loot etc.
It is not difficult to create a unique monster and unique loot for certain events. But to create a loot system for the whole game - this is challenging task.
As you remember, I want to add schemes for crafting unique items. This scheme is a unique ingredient for crafting and a sort of visual stimulus to make this item. Pictures is much more interesting than just text, but it is quite time-consuming.

Heyya Kva the art looks a like a Michaelangelo sketch! Very effective "stimulus"