Hello everyone :)

For this technique we are going to do something counterintuitive, we will raise a few units to their max level but without unlocking their SBBs.

The key is to only enable SBBs in your auto-battle settings. This way, all the units you left without their SBBs will only use basic attacks, saving you a lot of time.

BASIC SETUP

Leader : Zelnite. Obvious choice for getting extra EXP. Also provides extra BC drops and HP boost which gives nukers like Rize more damage. Haruto also works, but he has long animation, and nothing on his LS beside the EXP bonus.

notable sphere/elgif : Hit count sphere, attack boosting sphere, crit chance sphere, Hit count elgif, attack elgif.

Nuker : Rize, Kajah or Duure are the best choice here. Ideally, this should be your only unit with its SBB unlocked. Try to give them as much damage as possible while having enough BB fill potential.

notable sphere/elgif : Sky Harbinger, Sacred Axe, Skylord's Blade, Phoenix Blossom, HR50 Elgif, any HP Elgif.

Random Light unit w/o SBB : Light unit is preferred because of the boss being Dark element. Any Light unit dupe you have should be enough but if you have many, you would want high base attack, high dropcheck and relatively fast animation. Atro fits those criteria very well and he is free.

notable sphere/elgif : Hit count sphere, attack boosting sphere, crit chance sphere, WDB, EWD elgif, Hit count elgif, attack elgif.

Here's my setup for reference :

• Leader : Zelnite (Nevana Crown Shiny Anklet Demigod Balance) - no SBB

• Reihard (Amenonuhoko Shiny Anklet Demigod Balance) - no SBB

• Rouche (Divine Wings War Demon Blade Demigod Balance) - no SBB

• Lucius (Sky Harbinger Sacred Dagger Hit Count Elgif) - no SBB

• Rize (Sky Orb Skylord's Blade HR50 Elgif) - SBB

Demigod Balance Elgif : Boosts Atk relative to how high remaining HP is (0~100%) & boosts Def relative to how low remaining HP is (0~100%)

I further drop my friend leader to gain more time, but this requires a good setup to be beneficial, you'll often find yourself not having enough damage to OTK waves.

Final outcome should look like this.