If I combine Solael’s Witchfire with Phantasmal Blades, will SW impact the damage on PB since PB has a %weapon damage component to it?
Yes, the flat Chaos damage will be added to your weapon damage and Phantasmal Blades will deal some % of that. The +% vitality damage will also effect the vitality damage on heart seeker and any that is converted from piercing damage by frenetic throw. The attack speed buff is sadly wasted as PB is a cast speed ability.
Is there a way to tell when an ability is cast speed vs attack speed?
That is what i asked a long time ago - to mark skills as either attack or cast so the player don’t have to guess. It is just a QoL improvement imho