The only issue I have with water, it has not got the "punch" effect of some other sets like ice and fire. I don't feel I hit hard with water.. not like frost breath or fireball. this is all about personal feel. You can always have it a ride with a DFB and get the feel of it yourself ofc
I just did my first run.
Selected both lives, failed and died in encounter. Gone to hospital and voila, had my incarnte salvage thing at the hospital ^^
I think if we let them both die, there wont be a fight and mission completes but I have to check it when I run this again