It wasn't only the extremely high effect of the buffing spell used by Jasmine what, took the enemy queen by surprise, but the fact that she ignored the "order" in which it should have been used.
There are many types of buffing spells and martial arts, some target an aspect in general such as strength, defense, speed, reaction time and the like can be used rather freely, the "Song of War" martial arts used by Erika is a good example of this type, as it increases strength in general.
And then there are those that are of a much more specific nature, like the ones that buff not an aspect but a specific type of technique, like the "Silver Shield" used by the light princess.
Now, what contributed the most to the surprise of let alone the enemy but even Daimon and the others, is the fact that those type of buffing spells usually have much stricter conditions needed for their activation.
