Hello Gantoris,
I know I am not the best person on this forum to answer your question:
1. because I played just one game so far and
2. my english is not so good that I maybe confuss you with my explanation.........
We had the same thing when we played it, but we thought that the stone that was drawn before the combat stone is the one who has the initiative!
So, every time you draw a stone, the stone before that lose the initiative!
I hope I make sence and please correct me if we played it wrong?