Confusion was a good choice of final spell. Not because it would have any effect on the group, but because it seemed appropriate. She spent a good deal of time in this dungeon confused, might as well go out sending some of that confusion back at the dungeon. The swarm was unaffected by the spell and made landfall on her body. As the began to drain her blood, her body seemed to react. Her limbs shrank down, returning to normal size, her lungs were crushed, forcing her to gasp for breath and her stomach continued to expand. She would be unable to catch her breath, each intake of air felt as if nothing came in and yet with each breath her stomach grew. Until finally her body could no longer stand the strain.  She would burst open, sending the swarm flying across the room and into walls. And out of Cassia's blown out body would emerge a gaseous cloud.