I'm playing a bit of this. I agree with Ryan's feedback, but I have some input of my own to add in:

I think that it would be better if you added in a tooltip for what the orange cross arrow did. I'm assuming that it means that it's a random choice, but it's not completely clear for me to see. I'd also like to see some timestamps for the chat for more context, or perhaps just an option for timestamps. I'm going to look forward to this PvP once there is a larger community. I think that's what really takes it off.