Jarvan always runs into the fight and screams "I'm helping!" and then throws a giant wall blocking me from getting to the enemy I want to kill. He saves the enemy more than a Bard does, and usually dies in the process.
Can we erm... Fix this? Maybe let allies pass through his terrain (and nerf his numbers a bit if this makes him OP)? When I hate having one on my team more than having a Bard, there's an issue.