The most impactful Harmony support of her patch. Tribbie supercharges every ally with All-Type RES PEN from her Skill's Numinosity, then opens a Zone that deals HP-scaling Additional DMG each time allies strike, turning multi-hit AoE teams into unstoppable damage machines with every Ultimate she fires.
Deals Quantum DMG equal to 15% of Tribbie's Max HP to one designated enemy, and Quantum DMG equal to 7.5% of Max HP to adjacent targets. A respectable HP-scaling hit that also clips nearby foes, though Tribbie typically spends most turns using her Skill.
Gains Numinosity, lasting for 3 turns (duration decreases by 1 at the start of her every turn). While Tribbie has Numinosity, all ally targets' All-Type RES PEN increases by 12%. This persistent RES penetration is the foundation of her support value; keep it up at all times.
Activates a Zone and deals Quantum DMG equal to 15% of Tribbie's Max HP to all enemies. While the Zone lasts, enemies take 15% increased DMG. After any ally attacks, for every 1 target hit, deals 1 instance of Quantum Additional DMG equal to 6% of Tribbie's Max HP to the highest-HP target hit. Zone lasts 2 turns (decreasing at the start of her turns).
After other ally characters use their Ultimate, Tribbie launches a Follow-up ATK dealing Quantum DMG equal to 9% of her Max HP to all enemies. This triggers up to 1 time per character per Zone cycle. When Tribbie uses her own Ultimate, the trigger count for all other ally characters resets, meaning frequent party Ultimates chain directly into repeated Follow-up barrages.
After using Technique and upon entering battle, obtains Numinosity for 3 turns. This means Tribbie enters every fight with her RES PEN support already active, letting her allies benefit from the 12% All-Type RES PEN from turn one without spending her first action on the Skill.
Tribbie excels in AoE multi-hit compositions. Characters who frequently hit multiple targets activate her Zone's Additional DMG more often, and those who use Ultimates frequently chain her Talent's follow-up attacks. HP-scaling carries benefit doubly from her team HP bonus.