English 
Welcome back, agents! To celebrate its 1st anniversary, Chaos Zero Nightmare introduces the new season update, “A Promise Upon the Snow,” featuring the powerful seasonal limited character Rossweisse — a Justice-element Striker built for devastating single-target burst and unique card manipulation. Her kit rewards tight deck management, and this guide covers all of it: core mechanics, card builds, epiphany picks, gear stats, teams, and pull advice.
The one real cost is grinding her fragments and seasonal materials. OSLink makes the grind easier by supporting multiple game clients and background farming, so you can manage repetitive tasks more conveniently.
1. Character Overview: Role & Core Mechanics
Rossweisse is a 5-star Justice Striker who converts hand-clearing into burst damage. At the start of each turn, her signature Flicker Blade enters your hand and splits into Shard: Light and Shard: Dark, locked to the far left and right slots. Playing your own or your teammates’ cards triggers light/dark follow-up attacks that generate Sword Tassel cards (Bind keyword). Clear every regular card out of the middle slots and the shards fuse back into Flicker Blade, consuming all accumulated Sword Tassels in one Coalesce explosion.
2. Skill & Deck Breakdown
Her card mechanics revolve around managing the cards in your hand:
|
Card Name |
Type |
Cost |
Effect / Role in Combat |
|
Sword Slash
|
Attack |
1 AP |
Standard basic attack dealing 100% damage. |
|
Standing Blade
|
Skill |
1 AP |
Generates 100% shield to improve survivability. |
|
Flicker Blade
|
Attack |
Unique |
Splits at turn start into light/dark shards and merges when your hand is clear of non-bind cards for a massive burst. |
|
Sword Resonance
|
Skill |
1 CP |
Instantly generates 3 Sword Tassels to stack up your burst multiplier rapidly. |
|
Radiant Sword Flow
|
Attack |
1 AP |
Deals damage and allows you to discard up to 1 hand card to trigger an extra damage modifier, serving as a crucial hand-clearing tool. |
|
Blade of the Cycle
|
Attack |
1 AP |
Applies Brand of the Cycle to increase incoming damage from Rossweisse. |
|
Kyrken's Apostle
|
Unique |
0 AP |
A starting unique card that draws 2 cards and grants Kyrken's Aegis for a permanent attack and burst damage boost. |
|
Flickering White Night
|
Ego Skill |
Ultra |
Deals massive damage and inflicts a fixed-damage follow-up proportional to the final blow. |
3. Epiphany Recommendations
Epiphany picks decide how cleanly her mechanic runs in rogue-like content.
• Flicker Blade: Amped is the best all-round pick — higher base multipliers and shard trigger damage.
Cycle: Offers excellent synergy with card-draw-heavy compositions.
Radiant Sword Flow: take the node that cuts card cost on discard, or the one that scales with Justice cards in hand.
Sword Resonance: upgrades that generate maximum Sword Tassels while drawing an extra card.
4. Potential Investment Priority
Balance stat thresholds against skill upgrades:
Priority 1 — core stats & unique skills: max Unique Card Upgrades immediately, and push Attack to 800 through Special Stat Upgrades to fully exploit her Justice damage scaling.
Priority 2 — crit & utility: Critical Chance Proficiency and Epiphany Bonus nodes for consistent high-tier output.
Priority 3 — basic cards: invest any remaining resources in basic attack upgrades later on.
AFK Anywhere, Progress Anytime
5. Partner Recommendations
The right partner can significantly improve her damage output.
|
Partner |
Rarity / Role |
Why It Works |
Priority |
|
Sig |
5★ Seasonal BiS |
Provides an Attack buff and increases Critical Rate when Justice cards split, along with Critical Damage and ultimate damage scaling based on Bind stacks. |
Must-pull |
|
Any 5★ Striker |
5★ Striker |
Raw attack %, critical damage, or attack-card multipliers. |
Solid option |
|
High-tier 4★ Striker |
4★ Striker |
Same stat profile, lower values — a fine filler before Sig. |
Budget |
6. Memory Fragment Sets & Stat Priorities
Veiled Radiance (4-piece) stacks critical rate as Justice cards accumulate, easing gear requirements. Snowflake of Our First Meeting (4-piece) ties damage scaling to Bind and Sword Tassel consumption. Early on, a 2-piece Attack plus 2-piece Critical Damage split is plenty.
|
Gear Slot |
Main Stat Priority |
Substat Priority |
|
Slot 4 |
Critical Rate or Critical Damage |
Critical Rate > Critical Damage |
|
Slot 5 |
Justice Attribute Damage > Attack % |
Extra Damage Multiplier > Attack % |
|
Slot 6 |
Attack % |
Flat Attack |
7. Team Recommendations
A working team needs allies who clear hand clutter and feed your AP.
|
Team |
Core Members |
How It Wins |
Status |
|
Meta Unload |
Rossweisse + Tiphera + Mika + Nia
|
Tiphera handles hand manipulation while Mika can supply high-frequency card cycling and AP recovery, so your hand never locks up. |
Current meta |
|
Justice Vanguard |
Rossweisse + Blazebell + Dahlia (upcoming)
|
Pure-color faction squad that maximizes faction-wide bonuses once Justice teammates release. |
Prepare ahead |
8. Pull Advice & Ego (Consciousness) Breakdown
Before you spend currency, review her ego milestones:
|
Ego Level |
Major Milestone Effect |
Strategic Value |
|
E1 |
Sleeping Memory |
Grants +1 AP to starting cards and buffs her permanent combat multipliers. |
|
E2 |
Awakening Memory |
Triggers free, high-multiplier follow-up attacks with extra Sword Tassel generation every turn, helping reduce hand-management issues during the early stages of combat. |
|
E3 & E4 |
Intermediate Upgrades |
Substantially increase Ego skill ratios and provide rapid self-buffing damage amplifiers. |
|
E5 & E6 |
Complete Mastery |
E6 allows Flicker Blade and its split shards to ignore hand-limit caps completely, removing all mechanical friction. |
For this seasonal limited character, E0 with her signature equipment is a reasonable starting point, while E2 offers additional value if you enjoy her playstyle. Mastery still takes patience, precise hand management, and a mountain of fragment farming — let OSLink run the daily multi-client automation and background farming while you focus on tactical execution.
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