This one is new I think, since I can't remember it from earlier plays:
If you cast the free will buff on yourself while you still have it active(only case I tried so far), it will not refresh the shield, only the heal. Very annoying since I use it to counter the suicidal nature of overdrive, and the heal part is useless against debuffs like black metal. Which doesn't get dispelled despite not stating as much in the description but I guess that's just game design. I'm pretty sure free will not refreshing the shield on a recast isn't.
Krin shouldn't fix this. This is actually super-useful against enemies who cast really strong shields over each other (you only have to break it once, the extra casting has no effect) and Felicity stacking Blade Dance effects.
