If you look in the cp you see that you can get 25% physical damage with 100 points into mighty and 25% physical crit damage with precise strikes 100 points. So if this is the right tooltip it would be useless putting many points into precise strikes even with like 80% crit or more because mighty is exactly the same just on ALL physical attacks and not just crits with the same calculation. If anyone has an idea about the actual damage of mighty i would appreciate it if you share your knowledge.