Auditory actions and effects rely on sound. An action with the auditory trait can be successfully performed only if the creature using the action can speak or otherwise produce the required sounds. A spell or effect with the auditory trait has its effect only if the target can hear it. This applies only to sound-based parts of the effect, as determined by the GM. This is different from a sonic effect, which still affects targets who can’t hear it (such as deaf targets) as long as the effect itself makes sound.
Bard
This indicates abilities from the bard class.
Concentrate
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.
With a rousing call, you exhort an ally to advance. If your next action is to cast the courageous anthem composition cantrip, one ally of your choice who gains a status bonus from the spell can immediately use their reaction to Stride.