Jack Handle wouldn't work for this as it will cause Mr Fixer to hit only non hero targets. This is something I've done with similar items like Driving Mantis or Total Beefcake.
Oops! Edited. :)
Nightmist can also use effects that make her unable to deal damage, especially early in the game. It's often not her choice when to get them, but it does help keep her from being as SOL as some other heroes (besides AA and Legacy) might be.
I've run into that for sure. It can be a blessing and a curse not being able to deal damage. A blessing because her main power and spells like Enlightenment or Planar Banishment have no downside. A curse because if she was holding onto that big Oblivion or wanted to redirect damage she is thrwarted.
That's very true. The first time I ran into it I was quite pleased with the utility I was able to use it to my advantage, which is almost never the case with this kind of debuff. Giving 3 extra cards to Unity and drawing two more without taking any damage that turn was a nice change of pace.