Merxia Vendicci when my character is caught stealing from her manor in Old Ebonheart, casts a spell to attack.  It creates a shield, and simultaneously casts poison damage at the same time, but on herself.  She dies within a few seconds of casting the spell.

I'm thinking this spell is meant to be cast towards the player rather than on herself, but it looks like its combined with her shield cast making both on-self effects rather than shield cast->on touch poison attack.