Hello. I made a simple xlsx for easy calculating of the simplest and the most common combat outcomes in game. You can check Your chances of winning 1v1 battles and ONE vs "stack of the same units" - just to be sure that You have over 90%. It is really useful especially for not experienced players like me. Tool is made by myself, I made it free for non-commercial use. Feel free to use, comment and put Your questions here (I tried to make it easy to understand and clear). There is the option to consider ambush as well (or to estimate fights with some supporting units, for example You can check chance to win with 2 infantries, put it to 'pre-fight win chance' and check Barbarian's chance then (it will not be accurate - its counted like infantries do no damage if they lose, so in game chance will be higher - so more than safe if You count over 90%)).
Edit: Actually i added attachment but I don't see it. I will need to ask some admins here, look forward for this tool, it's cool
Edit: Ok, I see xlsx is not allowed. I 'zipped' it, now should be available.
Edit2: I have played game where I had Barbarian with 4 and 5 hp, so I updated the tool. Now You can for example check if Your barb will win with 15 infantries for sure. Fixed some minor bugs and added few notes as well. Btw. check the formula which is counting 5hp vs group chances - it's so impressive that I can't believe I made it in few minutes and I'm sure that it works well.