Fellow reader (The Showstopper) made a point in the comments on how the proposed logo might look better with just the head. I was having trouble imagining it, so I used my limited art skills to crop it down and see what it would look like.
After doing this I at least feel like this could grow on me, more than the fully body tumor tail/3rd leg. I do think the purple would need to be thinned out a bit, but I at least felt that this frog was a little more fierce.
Also in the process I just put the horned frog outline against a purple background to see what it would look like. Turned out looking more like a psychologist's inkblot card. Maybe we could really get inside the other team's head with this one?
And beware, once you see this old long-nosed bearded man he can never be unseen. Your welcome.