Tier S Imaginary Harmony · Light Cone

Sunday Best Weapon & Artifacts for 2026

⚡ Why This Build Works

A Grounded Ascent (signature) synergizes with Sunday's kit because it provides the stats they need most. Combined with Messenger Traversing Hackerspace (4pc) + Broken Keel (Planar), this build achieves the best balance of damage output and energy efficiency in the current meta. The main stat priority of Speed / CRIT DMG / Energy Regen ensures Sunday hits the right damage breakpoints while keeping their rotation smooth.

Build Tips & Optimization

Best Weapon: A Grounded Ascent (signature) F2P Weapon: Past and Future (R5) Best Artifacts: Messenger Traversing Hackerspace (4pc) + Broken Keel (Planar) Main Stats: Speed / CRIT DMG / Energy Regen Substats: Speed > CRIT DMG > Energy Regen > ATK% Talent Priority: Skill > Ultimate > Talent > Basic Rotation: Skill to advance carry + summon -> Ultimate to designate The Beatified (CRIT DMG/Energy) -> Basic.
Updated October 2026

Best Weapon for Sunday in 2026

A Grounded Ascent (signature) is the best-in-slot weapon for Sunday. This weapon maximizes their damage output by synergizing with Imaginary damage and their kit mechanics. It provides the optimal stat balance — whether that is ER for burst uptime, CRIT for raw damage, or EM for reaction teams.

F2P Weapon Option

Past and Future (R5) is a strong alternative that performs well without spending primogems on the weapon banner. It provides competitive damage especially at refinement 5. For budget players, this weapon lets Sunday clear most content without sacrificing too much damage — the gap between Past and Future (R5) and A Grounded Ascent (signature) is usually manageable in endgame content.

Best Artifact Set for Sunday in 2026

Messenger Traversing Hackerspace (4pc) / Broken Keel (Planar) is the recommended set. This set provides the best balance of damage and utility for Sunday in most team compositions. The 4-piece set bonus works directly with their kit to amplify damage, while the 2-piece bonus covers their stat requirements early on.

Stats Priority

Getting the right main stats is the most important step — a correct main stat with bad substats will always outperform the wrong main stat. Once your main stats are correct, focus on improving substat rolls to optimize Sunday's damage further.

Rotation Guide

Skill to advance carry + summon -> Ultimate to designate The Beatified (CRIT DMG/Energy) -> Basic.

Practicing this rotation is essential. Sunday relies on proper ability ordering to snapshot buffs, maintain uptime, and maximize their damage window. Watch your energy gauge and swap back to supports before Sunday's buff window expires.

Common Mistakes When Building This Character

Frequently Asked Questions

What is the best weapon for Sunday?

The best-in-slot weapon for Sunday is A Grounded Ascent (signature). It synergizes with their Imaginary kit by providing the exact stats they need. For players who don't have it, Past and Future (R5) is the strongest free-to-play alternative and performs well even at refinement 1.

What artifact set should I use on Sunday?

Messenger Traversing Hackerspace (4pc) + Broken Keel (Planar) is the recommended set for Sunday. This set maximizes their damage output by working with their kit mechanics. The main stats to prioritize are: Speed / CRIT DMG / Energy Regen. Substats should follow this priority: Speed > CRIT DMG > Energy Regen > ATK%.

What is the optimal rotation for Sunday?

The optimal Sunday rotation is: Skill to advance carry + summon -> Ultimate to designate The Beatified (CRIT DMG/Energy) -> Basic.. Timing is key — make sure supports cast their abilities first so Sunday can snapshot buffs and maximize their damage window.

Is Sunday worth building in the current meta?

Sunday is rated 9.5/10 and works as an imaginary harmony. They fit into Sunday + Jing Yuan + Huohuo.. Even at moderate investment they perform well in current abyss rotations.