Flins is an on-field DPS unit who utilizes a short field time to generate energy for himself and use the lower Energy cost Burst when possible. Because most of his damage is Lunar-Charged, Electro DMG% and other DMG% buffs are not particularly useful for him.
Flins requires another Moonsign character in his team to unlock a large portion of his damage potential.
Regarding Weapon Choices:
Staff of the Scarlet Sands: With this weapon, an Elemental Mastery Main Stat on a Sands or a Goblet can outperform ATK%. In teams where Flins can execute 16 second rotations, this weapon performs similarly to .
Vortex Vanquisher: If Flins is shielded, this weapon performs slightly better than .
Deathmatch: At [R5], this weapon performs slightly better than .
Ballad of the Fjords: At [R5], this weapon performs similar to .
Regarding Artifact Choices:
Substats
Energy Recharge: Prioritize until requirements are met.