I have been playing this map for a week. There is a hero called "Time wizard" that has no skill cooldown. And it's really annoying when someone picks this hero. I found a new version of this map where this issue has been fixed. https://www.epicwar.com/maps/173759/ Can you use this map from now ?
@daviday, you'd have to contact the community whose bot(s) host this map. Normally, when you join their game you should be able to see a website for statistics, data and so on, which you should use to contact them and submit your request. Alternatively you can be the host and use the updated version of the map instead.
The custom hero survival map has some unbalanced parts that make it unfair for players. Some heroes are way stronger than others, and certain challenges feel too easy or too hard. This makes the game less fun for everyone.