There has been a slight change to serpent in low magic. This was
actually the way the upgrade was intended (recall that it used to just
be a 1-shot shield and was once upgraded to be a continuous shield), but
some miscommunication between me and Estarra resulted in the mistake.
Check the AB file for details.

Penned by my hand on the 13th of Roarkian, in the year 113 CE.