I have to say, Killer Frost looks ace. I love what Netherealm have done with her design. Both of her outfits speak volumes. I think someone mentioned this earlier, but she does suprisingly look like the most feminine of the female characters revealed. Kudos to Netherealm. I'm looking forward to seeing what kind of potential she has.
I also realise that there are likely a lot of DC fans who feel the slot has been wasted on her character, but this might be a case of DC wanting to see her receive more prominence in media outside of the comics. Or even, Killer Frost might have a bigger role in the DC universe to come, going forward, hence her inclusion here.
On another note, I've always been a casual fighter fan. I have bought most fighting games but spent little time playing competitively. I generally fight it out with my partner, brother-in-law, family, etc. Just local matches. If I wanted to actually learn how to use a character in greater depth, what should I do? I'm not familiar with many of the terms that are thrown around here, like 'zoner', for example. I see that Injustice has frame data available per move or combo via the move list. What does this mean for someone wanting to learn how to be a better player, or wanting to play competitively?