Kineticist Questions

[Dragon78]

I was wondering if you can still use your metakinesis abilities on kinetic blade/whip?

If so does empower/maximize work for every attack or just the first?

[Argendauss]

Yes and every. Kinetic blade/whip just changes the blast but isn't said to be a form infusion (i.e. it's analogous to metamagic), so it should stack. All of the attacks using kinetic blade or whatever other infusion like that are a part of the same blast. One blast that manifests itself as a energy weapon you swing using iterative attacks; one cost as far as metakinesis, composite blasts, substance infusion, etc.