Changed my A13 team a bit. Swapped out Vildred for Bellona with her S2 EE after I got her. She is only level 50 right now with spare gear. The run is a bit slower than with Vildred but much more consistent. I get about 90% to 100% successrate on auto. I use Bloodstone for some more healing.
This run will only fail if:
1. SC Ras fails to dispel Berserk 3 times in a row.
2. Bellona's S2 fails to dispel Berserk 3 times in a row.
3. Specter Tenebria on Violin fails to dispel Berserk after stage 3.
We had some dual attacks in the beginning, speeding up the run a little bit. Main damage comes from poison stacks. This team can handle the boss it's cleanse after 3 debuffs have been applied.