Dutch_leon wrote:
Yes but first of all, this was only a 10 % assimilation probability and i also thought that that assimilation probability could only work in a negative way, for example that it would except for int also woudl change phy. attack power from 44 % to 0 % or something. Thats why i alsways try to pick stones with the lowest assimilation probability

Good going there. Assimilation indeed has a negative effect 80% of the time. Continue to go with 10% stones, and when stuff like this happens, be happy.