Additionally:
- Remove that spirit recipe with Arcane Mythril (this replaces lifeblood), as it is plain useless.
Reasoning: Turns the thing from a noobtrap to a long but a tad bit less expensive way (the other way is the one that needs mossathane) to get an arcane ingot. Also allows for a bit of an easier way to get Arcane Mythril (for potions).
(Idea can be tweaked to your liking)