Well it all depends on what plans you have for him, at least I use him on ranked battle and he has proven to be quite useful. He uses the dead ninjas from the team he is in and pops up a Hashirama (actually he can pop up 2 Hashis and 1 Tobirama if all 3 units on his team dies), which is good for control. Oro-sama also heals himself when a clone or any other unit dies. I think he's better than Orochi sannin war, but of course this is only my opinion. Best regards ^^