As it wasn't mentioned in the manifesto - will it or won't it cost mana to sling?
External link →As it wasn't mentioned in the manifesto - will it or won't it cost mana to sling?
External link →It does cost mana.
With no reduction on the reservation whatsoever?
Right
Is this an oversight? Feels like this does not work with the skill at all.
No, the rationale behind it is that it already allows you to ignore cast speed and also adds damage based on your wand. It now no longer also let’s you ignore the mana cost of the triggered skill.