The slay momentum spend lists 3-8. But the description says you must spend 5 to cause a wound… etc.
How or what is the purpose of the momentum spend? What does spending 3 or 4 points do?
Even when you read “and now you may die” I still do not understand it.
For what it is worth, the (inofficial?) Sorcery FAQ has this information about the Slay Momentum spend:
Q. Why does the Slay Momentum spend have a cost of 3–8? The text says it requires 5+.
A. The text is incorrect. Inflicting a Wound requires 3 Momentum. The Momentum spend allows damage up to 6 Wounds in total.
(Regarding the “inofficial” status of this FAQ: it is by Benn Greybeaton, a Modiphius author who worked on the Book of Skelos. So it might be an official clarification / errata after all.)