Recommended equipment

Exclusive weapon is Pyro Glacier; extra stats magic penetration and max HP. Provides firepower support and a powerful shield. At 3-dupe+ it adds TP recovery (20%~30% chance) but being probabilistic it is hard to leverage. Comet Veil: shield 3%~5% spell power per stack, 1 turn, max 10 stacks, undispellable.

• Armor: all-in spell power solves both firepower and survival, so spell power stacking is essential. Since her survival performance is better than firepower, Cardinal 4-set (boosts HP, spell power, and TP) is appropriate. For firepower, Chancellor 4-set can also grab move/survival via the "Retreat" effect, but given her debuff/survival-weighted design it is only "usable," not ideal.
• Accessory: Black Dice for survival feels appropriate, or go full survival with greaves-type accessories.