This is interesting. He attacks twice with every turn and always goes first. His attack is low, but you can beef it up with gems. So he can be a great character to use. You’ll have to spend a lot of time leveling him up to open up slots, but the idea is good.
I don’t have him yet, but I want to try this idea out. It should work if you have powerful enough gems to insert into him. If not then he is still a good character that can wear down opponents.