So corrode hits both groupmates as well as yourself if indoors, but not outdoors. I can see groupmates, but not yourself - not sure if intended.


Also the fade echo has a typo: You recover from the corrision.

Fixed as to both posts

EXCEPT FOR your first part.
As with a number of area spells, there are conditions where you might hit your friends. This remains true.

Echoes fixed.

As for the rest - don't ask me. Go experiment and have fun.