I wanted to check how much critical damage my assassin can deal, but couldn't find it anywhere.

Would be good to have it on the unit details page. For example, for Irane in the screenshot, base +1 (assuming double damage for crits, I don't actually know what it is), path of assassin +0.5, vital strike +0.1 / + 0.2 / +0.4, equipment..., total +2.2.

And while we are on the topic of missing stats, how about dodge vs. ranged? It should be part of the dodge tooltip, with the same red/green treatment as used for defense.