He works best if you have Baze. By himself at 3*, he will feel very underwhelming. It's pushing ti using him at 3* even with Baze. HOWEVER. He is super awesome. I have him at 3* and enjoy using him with Baze in GW sometimes.
I got him at 3* back in tournaments, but without Baze he has just sat there unused ever since. If you could star him up he is a good attacker as well as having lots of cleanse and heal utility, but without either the stars or Baze I just don't see him as arena viable.
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Farming baze is pretty easy if you get good arena ranking.
Edit: ninja'd