3,807 according to the grimoire card. While I've played since the first week of the game, Murmur was the first fusion that I liked using, and that was only because you could change the elemental damage. As it was the only weapon I knew to do that, I grew to like it but still didn't really enjoy fusions as a whole. I didn't really like using fusions until the warlock got the class exclusive one. With the ability to change elemental damage, it has become a favorite. Still thought that number would have been higher though.