There is an error in the Spell Storing skill in the Playtest 2.2 packet. A sentence from an earlier draft of the skill was left in accidentally and changes the intended function of the skill. This packet will be replaced soon, but in the interim please consider the paragraph below to replace the first paragraph in the skill description.
This skill allows the character to catch any low magic, Spell Singing, or Nature Magic spell that affects them cast by another character. The character CANNOT store spells they cast themselves with Spell Storing. A character can have as many purchases of the Spell Storing skill as they wish, but can only store one spell at a time. Therefore, if the character has three purchases of the Spell Storing skill, they can capture and store one spell at a time, three times per Tag Cycle. If the character already has a spell stored when they try to store a another, the first spell disappears harmlessly and the new spell is stored instead. The stored spells are not detectable by any means and cannot be dispelled. Even if the character dies, they retain the spell when they resurrect.