User blog comment:CatsRules/Maxwell trial help!/@comment-26050301-20150203201755

4 of the units I used to complete it you have. I used a 5* zelnite (79) 6* arus (78) 6* narza (100) grahdens (80) and granted a 6* tree that you dont have, with a tridon friend.

I mean Narza is literally there just to mitigate while trying to pull the SBB off if you can to get a BB gauge boost (and it is possible to save it on some turns if you look at the 3rd trial attack pattern). While Arus and zelnite can help bring your BB gauge up for narza and also tridon in my case. The tree was just a basic healer and grahdens was there just for the leader skill and the dark element buff. Then all I did was use a Fujin potion to get Arus' SBB back to finish it off.

I get where your coming from though, no healer is a big pain in the butt. It will take away from the usefulness of a tridon or grah but you could just use a friends healer, hell add me and I'll stick on my 6* tia or tree if you want to give it a go still.