Definitely the only thing I dislike about Fatals is what
@ShepherdOfFire said: they're too long. All this complaining about "I was winning, then I lost because of Fatal Blow" is just that, complaining.
• If you lost the round because of a
Fatal Blow, then you weren't really winning by all that much anyway, then.
•If you had a massive life lead, and still lost the round after a Fatal Blow, news flash: It wasn't the Fatal Blow that screwed you; the opponent's superior play screwed you.
•If you lost an entire match (2 Rounds), you can't blame Fatal Blow for
both losses, especially since you have a Fatal Blow too and if you're opponent has already used their's, then what's your excuse for losing round 2?
I've lost a number of games because my opponent (either A.I. or Human) has dropped a well-timed Fatal Blow on me that I failed to defend against. When it killed me, I'd been in dangerous health territory anyway. When it didn't outright kill me but I still lost the round, it's because my opponent played a better match than me and was able to capitalize on their momentum.
Fatal Blow needs a change to overall speed,
not damage or how it's triggered. Make them shorter, and
maybe add a second or two to the recharge time, and they'd be golden.