Pulled this guy from the Assassin/Gunner rare soul weekly trooper gift last week. He does true damage (although his damage pales in comparison to the mummy dog or harpy) which is really awesome and he hits AOE.

With skill shards guaranteed to boost damage all the way up to 50% more, he has potential to be a beast. The power skill basically makes him and your team unkillable (unless you get debuffed). So far I like him enough to add him to my main team.

If anyone would like to try him, I can add you as a trooper. He is my current champion. WickedVase-5538

http://imgur.com/a/xCSQy