Wolf's Gravestone is the closest fit on the game's own numbers: Danica's kit multiplies ATK, and a weapon is ranked here on whether its ascension stat and its passive act on that stat. Song of Broken Pines, Favonius Greatsword and A Thousand Blazing Suns come next. No playtested ranking has been imported for Danica, so this is arithmetic over the kit data rather than a damage measurement.
Run Heart of the Furnace on Danica, with Disenchantment in Deep Shadow and Noblesse Oblige behind it. Main stats are ATK% / Energy Recharge sands, ATK% goblet, ATK% / CRIT Rate circlet. Roll substats in the order ATK% > Energy Recharge > CRIT Rate / CRIT DMG.
Talent priority is Elemental Skill > Elemental Burst > Normal Attack. The Elemental Burst costs 60 energy, which is what an Energy Recharge target has to clear.
Danica plays Electro · Shield in the Anastasya team, alongside Anastasya, Mitya and Odette.