|Taking advantage of a sky-high base attack stat and the HP to make good use of Fire Boost 3, this is a simple set of skill inheritance improvements to his base kit to allow you to comfortably auto-battle Hard-5 in Tempest Trials and earn you thousands of points.
We keep the basic weapon owing to its solid base might, though the refinement is flexible. Speed would keep him very safe from being doubled by most of the non-speedster enemies faced, while Defense or Resistance cuts down on the damage he takes while in combat. The Armored Boots seal he comes with is perfect for him, allowing him to act just like an infantry lancer except with a pile more stats, letting him accompany his teammates. His assist can be kept to let him boost the other physical ally on the team when needed, but for autobattle purposes and how the AI works, it may just be better to unequip it so the Lord of Pherae prioritises battle, as he should.
Fire Boost 3 enjoys the HP increase from a refined weapon, and can easily be kept. Luna more or less ensures the kill whenever it triggers, even against green units. Renewal is the immediately obvious option for his B-slot, letting you heal repeatedly across turns and stages in Tempest Trials and keeping him in the range of Fire Boost 3 and Armored Boots. Finally, his C-slot is a flexible space, letting you either go with a buffing skill to aid his allies in their designated matchups or a threaten skill to guarantee a kill when needed.