Hi
Node before Seeker’s Ash is Flammability that has zero synergy with Plasma Ball (Lightning Conversion) and it requires three points investment to that skill to open Seeker’s Ash.
Devs please take a moment to consider if Seeker’s Ash could be moved to another location. Example switch it with Burning Wounds and adjust point investment accordingly.
Runemaster has great synergies and conversions in it skill tree’s and so should other skills.