Mortefi
Who is Mortefi?
Mortefi is a 4★ Fusion Sub-DPS using Pistols and the best off-field Fusion damage dealer among the 4★ standard roster. His ferret companion Momo triggers coordinated Fusion hits whenever the active character performs Heavy Attacks, making him a strong Sub-DPS for Encore (whose empowered combos include Heavy Attacks). His Outro also provides a Fusion DMG bonus to the next character. He is available on the standard Convene banner and the natural Sub-DPS pick for Encore or Changli teams that want off-field Fusion pressure.
Kit Summary
Pistols combo dealing Fusion DMG; generates Forte gauge and Concerto Energy progressively.
Sends Momo (his ferret companion) to attack an enemy, dealing a Fusion burst and applying a coordinated mark; subsequent Heavy Attacks by the active character trigger Momo follow-up Fusion hits.
At max Forte, Mortefi and Momo perform a combined Fusion attack burst dealing amplified Fusion DMG.
Momo enters an extended empowered mode, dramatically increasing coordinated Fusion hit frequency whenever the active character uses Heavy Attacks.
On swap-out, grants the next character +38% Heavy Attack DMG Bonus for 14 seconds.
Build Guide
🔮 Best Relic / Echo Set
Molten Rift (4pc) — Fusion DMG Bonus + stacking Fusion DMG on Heavy Attacks. Aligns perfectly with his kit's Heavy Attack proc mechanic.
⚔ Best Light Cone / Weapon
Thunderbolt (4★ Pistols) or any ATK/CRIT Pistols W-Engine — his Momo procs scale primarily with ATK and CRIT stats on echoes.
📊 Substats Priority
👥 Best Teams
Fusion: Encore + Mortefi + Verina (Encore's Cosmos Rave Heavy Attacks trigger Mortefi Momo procs; Mortefi Outro buffs Encore's Heavy Attack DMG)
Fusion: Changli + Mortefi + Verina (Mortefi off-field Fusion procs during Changli's combo windows)
F2P Verdict
Mortefi is available on the standard Convene banner — obtainable for free through normal play.
He is most valuable in teams where the main DPS uses Heavy Attacks frequently (Encore, Changli). In teams without Heavy Attack DPS, his kit contribution drops significantly.
His Outro +38% Heavy Attack DMG Bonus is one of the highest Outro buffs in the 4★ roster.
Frequently Asked Questions
Why is Mortefi good with Encore specifically?
Encore's Cosmos Rave state transforms her Normal Attacks into empowered Heavy Attacks. Each of these Heavy Attacks triggers Mortefi's Momo companion for a coordinated Fusion proc — giving Encore essentially free additional Fusion DMG on every enhanced Normal. Combined with Mortefi's Outro Heavy Attack buff, the synergy is significant.
Does Mortefi work outside Fusion teams?
His coordinated Fusion procs are element-locked, and the Outro Heavy Attack buff benefits all Heavy Attack users regardless of element. He is primarily a Fusion team unit but the Outro has marginal cross-element value.
How do I maximize Mortefi's contribution?
Deploy his Resonance Skill before swapping to Encore or Changli so Momo's mark is active when they start their combo. Then activate Liberation mid-rotation to enter Momo's empowered mode during the main DPS's peak damage window.