Robin attempted to save Dava, but since he was still under the effects of the Aramilla plant, he did not realize his own speed and strength, and accidentally killed the normally unbeatable Shiva. Dava was unmoved, although Robin was furious with her for making him break his oath to never take a life. At that point, King Snake arrived with more armed Kransa-Volvian troops, seeking to avenge his earlier losses at Robin's hands.
Robin tried to save Dava but was unaware of his own power due to the Aramilla plant and accidentally killed Shiva, who was normally unbeatable.  Dava remained unfazed by this while Robin was furious with her for breaking his oath against taking a life. King Snake arrived with more Kransa-Volvian troops to avenge previous losses at Robin's hands.