4★ Tressa

Tressa (4★ Void · Psionic) is a damage-over-time combatant in Chaos Zero Nightmare whose kit revolves around Agony stacks and Shadow Daggers. Her signature mechanic is generating 0-cost Shadow Dagger Attack cards that apply Agony — a status effect that deals Fixed DoT damage at the end of each turn — enabling consistent chip damage that scales with repeated attacks. Tressa’s core cards include Unsheathe Dagger, which creates multiple Shadow Daggers, Cursed Gouge for applying Agony and weaken, and Vital Attack that deals bonus damage when attacking targets afflicted with Agony.

Her Ego Skill, Wave of Darkness, creates additional Shadow Daggers and fuels her core damage engine by providing more 0-cost attacks, which in turn generate more Agony stacks for sustained damage. Tressa excels in teams that leverage frequent Attack card plays and status application, often pairing with allies that can trigger additional effects from frequent Exhaust or 0-cost cards. Well-built Shadow Dagger generation and Agony stacking make her a strong DoT specialist, capable of breaking down even high-defense enemies over time while enabling synergistic interactions with partners who benefit from high hit counts.