Board Thread:Questions and Answers/@comment-96.55.10.142-20190406200225/@comment-36894054-20190702161817

Use GW Jeanne and Remix Gilles (they can be in deck or support) to get crit combo. That will jack up your attacks enough to clear just about any defense. Looking at what you have, I suggest a fire deck with Mordred as your main damage dealer and Jack and Meru for passive boost. Earth could work with Ba'al as hitter and the Gunas' passive boost but fire is probably more effective.

If you are looking for perfect clears (kill every wave with one turn) your gonna need a burst deck that will allow you to burst on first wave (usually the toughest). Absolutely critical are going to be Djehuti, Cronus, and Dagda (Dagda is pack only and hard to get, it can be done without her but be prepared to reset a lot to get your passives to proc.) On top of that you need units with burst gauge charge and ability turn reduction passives (don't have to be P7, there are decent 7* that will do the trick).

On a side note, Swimsuit Jeanne and Bethlehem are kinda useless and could be medaled (I have kept mine, but only as eye candy:). Rusalka is pretty useless for attacking but is a critical defense unit. Hold onto to her.