is there any given data about the heroes? I mean like health, basic attack dmg, range etc.? I would be happy if someone could post a link if there is one, I already tried to find something but google only shows lists from like at least a year ago.
when in a match just click on your heroes icon at the top there you can see current health, damage, range.
Subreddit lists various community tools, maybe one of them will be covering exactly what you are looking for: https://www.reddit.com/r/heroesofthestorm/wiki/communitylinks