Spell Shroud
Your spell shrouds you in a billowing cloud. If your next action is to Cast a Spell that targets you, you surround yourself in a 15-foot emanation of dense magical mist that lasts until the start of your next turn. All creatures within the cloud become Concealed, and all creatures outside the cloud are concealed to creatures within it.
Traits
An action with this trait requires a degree of mental concentration and discipline.
This indicates abilities from the sorcerer class.
Spellshape actions 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. The benefit is also lost if your turn ends before you cast the spell. Any additional effects added by a spellshape action are part of the spell's effect, not of the spellshape action itself.