Actually true I got it first try and I'm so happy I got it!

Also here's what it looks like just in case

How rare is it? What are the chances of getting it in the crate or upon finishing some kind of quest?

The chances of getting an legendary is 2%

I got the face melter from colored crate and all crates (basic, standard, caliber and colored) cost 1250 blue tickets. (Besides diamond which you get if you kill a dia and get the crate crate first and unusal gift which you get if you make it to day 5 streak.)

How good is it, like, how much damage does it do?