An action with this trait requires a degree of mental concentration and discipline.
Spellshape
Actions with the spellshape trait tweak the properties of your spells. You must use a spellshape action directly before casting the spell you want to alter. If you use any action (including free actions and reactions) other than casting a spell directly after, you waste the benefits of the spellshape action. Any additional effects added by a spellshape action are part of the spell's effect, not of the spellshape action itself.
You can pull forth both vitality and the void simultaneously to harm your enemies and heal your allies. If your next action is to cast a 1-action or 2-action heal or harm spell, choose one creature in range that would be harmed by the spell, and choose another creature within range that would be healed by the spell. Your heal or harm targets both creatures.