1. Horrible Day is basically enhanced critical misses?

2. Levin in Solitude, does his special ability basically null Horrible Day?
"Ignores damage from a critical miss". So if I roll double two, no damage just a miss, right?

1. Yes. If you roll two 1s, a 1 and a 2 or two 2s then you suffer the effects of a critical miss.

2. You still automatically miss, you just don't take the pushing damage.