OOC:
Right. I know you had a question when I chose firebolts. My thoughts were, a) since they are directional bolts, they seem to be supped up magic missiles. b) cantrips are unlimited and at will, so a guy standing at a distances hurling firebolts would seem much more intimidating than a slight bard trying to pierce plate armor with a rapier while avoiding a battle axe swipe. c) it does a lot of damage for little cost.
For this battle, I didn't know the affect firebolt would have on the plate, and I could try to shoot it in their face, but I thought it would be more effective on the tentacles, which would further ingratiate me to the half-elf. Since she clearly didn't want the vampire to know she helped me (and I figured you are her god and told her to), I figured good will goes a long way when you need strong allies.