The formula should evolve dragons which are running away. He gives higher fitness for dragons which live longer, therefore all dragons which attack the player w

The formula should evolve dragons which are running away. He gives higher fitness for dragons which live longer, therefore all dragons which attack the player will be the first which are killed. And giving a big reward for killing won't help much. As only one dragon can kill, all other dragons will still profit from keeping out of reach of the player. Nice idea, but to impress me it should actually work ;-)