Overview
Sunday is a 5★ Imaginary Harmony from Penacony, playing Support in most teams. Imaginary Harmony buffer who enables memokeeper teams with CRIT and action advance.
How to Play
Sunday is a tempo piece — cast buffs before your carry moves, then stay ready to refresh them every few turns. Speed boots help you act twice before the DPS window closes. Cast buffs before your carry acts — Speed tuning matters more than personal damage.
Team Rotation
Turn 1: Sunday Skill buff → immediate swap to carry → Basic Attack or Skill with carry → Sunday Ultimate before buffs fall off. Reapply buffs every 2–3 turns.
Strengths
Sunday excels in Imaginary Harmony teams from Penacony. Strong team amplification that multiplies your carry's output. Signature Light Cone and endgame relics unlock their full ceiling.
Weaknesses
Sunday contributes little personal damage. If buffs expire early due to Speed mismatch, team DPS collapses.
Investment Priority
E0 Sunday clears story and Simulated Universe. For Memory of Chaos, level talents to at least 6/8/8, farm recommended relics from their build page, and hit Speed breakpoints with SPD boots. Pull or craft a matching-path 5★ cone if they are a long-term main; otherwise use the best F2P path option at S5.
Sunday best build summary
For the current meta, Sunday is a 5★ Imaginary Harmony Support. Sunday excels as a Support on the Harmony path. This build guide covers relic sets, light cones, stat priorities, and team compositions updated for Version 3.4. Prioritize these relic directions: Broken Keel (2pc) + Fleet of the Ageless (2pc); Messenger Traversing Hackerspace (4pc). Top Light Cone options include Past and Future. Full stat priorities and tiered gear lists live on the Sunday build page.
Best Sunday team synergy
Sunday performs best when teammates cover sustain and either buffs or debuffs that match their kit. Harmony Core: Sunday / Bronya / Tingyun / Luocha — Flexible template — swap supports based on your roster and content. Meta Template: Sunday / Sparkle / Huohuo / Acheron — Adjust for your account — focus on path and element synergy. Compare ready-made rotations in the StarPatch teams database, then open each teammate's build page before farming.
Sunday investment & farming order
Spend Trailblaze Power in this order for Sunday: character level and ascension → Light Cone level → major traces (Skill → Ultimate → Basic Attack) → recommended relic sets. Eidolons: E0 Sunday is viable for all story and most endgame content. Higher Eidolons improve damage, comfort, or team utility but are not required. Use the farming guide for domain routing, and redeem active promo codes for Guides and Aether before long farm sessions.
Sunday FAQ
Is Sunday worth building? If you need a Support on the Harmony path or Imaginary coverage, yes — start with the linked build page. What should you farm first? Levels and Light Cones before relics. Players looking at Sunday often also check Robin, Sparkle, Bronya, Luocha. For pull priority context, compare them on the StarPatch tier list after each patch.