The Daybreak Chronicles is the closest fit on the game's own numbers: Lyney's kit multiplies ATK, and a weapon is ranked here on whether its ascension stat and its passive act on that stat. Astral Vulture's Crimson Plumage, Royal Bow and The First Great Magic come next. No playtested ranking has been imported for Lyney, so this is arithmetic over the kit data rather than a damage measurement.
Run Crimson Witch of Flames on Lyney, with A Day Carved From Rising Winds and Disenchantment in Deep Shadow behind it. Main stats are ATK% sands, Pyro DMG Bonus goblet, CRIT Rate / CRIT DMG circlet. Roll substats in the order CRIT Rate > CRIT DMG > ATK% > Energy Recharge.
Talent priority is Normal Attack > Elemental Skill > Elemental Burst. The Elemental Burst costs 60 energy, which is what an Energy Recharge target has to clear.
The strongest team is Lyney, Kaedehara Kazuha, Emilie and Bennett, built around Lyney: Anemo · Burning.