Echoing Spell
You time the components of your spell with exacting precision, setting up a resonance that duplicates the spell's effects. If your next action is to Cast a Spell of 4th rank or lower that has no duration, the spell's energy reverberates and echoes. You can Cast the Spell a second time before the end of your next turn without expending a spell slot.
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.