Coils Gear.

[Pharazon]

Full Darklight and Relic arent needed, but preferred.

I would say that they are indeed needed. 1st turn is incredibly healing intensive especially if your tank doesnt have any myth or allagan pieces yet. You can do turn 1 with less gear but since darklight is farmable I dont really see any reason not to be fully geared going in. It's going to be tough anyway so no point making it harder on yourself than necessary.