Understanding Jing Yuan's Summon Mechanics
Jing Yuan's 5-star Lightning Erudition kit revolves around his Lightning-Lord summon. This entity has base 60 SPD, delivers 3 hits per action (max 10), and gains +10 SPD per Hits Per Action stack. Each hit deals 66% ATK as Lightning damage to random enemies, with adjacent targets taking 25% splash (50% at E1).
Lightning-Lord Damage Scaling:
- Skill adds +2 Hits Per Action stacks
- Ultimate adds +3 stacks
- Technique adds +2-3 stacks
- A2 Trace: +20-25% CRIT DMG at 6+ hits queued
- A4 Trace: +15 Energy at battle start
- A6 Trace: +10% CRIT Rate for 2 turns after Skill
Target Stats:
- CRIT Rate: 70-90%
- CRIT DMG: 140-160%
- ATK: 2500-3000
- SPD: 134-135
Need buy oneiric shards global? BitTopup offers competitive pricing and instant delivery.
Why Relic Sets Matter for Summons
Summon characters interact uniquely with relic bonuses. Follow-up sets trigger on Lightning-Lord actions, while summon-specific sets provide conditional bonuses based on summon presence.
Grand Duke:
- 2pc: +20% follow-up DMG
- 4pc: +6% ATK per follow-up hit, 3-turn duration, max 8 stacks (+48% ATK)
- Lightning-Lord with 6 hits = 6 stacks instantly
Beast Tamer:
- 2pc: +16% CRIT DMG
- 4pc: +32% CRIT DMG when summon active
- Total: +48% CRIT DMG with 100% uptime (Lightning-Lord persists)
Grand Duke: Complete Analysis

4-Piece Mechanics
Each follow-up hit grants one +6% ATK stack (max 8 = +48% ATK). Stacks last 3 turns. A 6-hit Lightning-Lord action reaches max stacks instantly. The 2pc +20% follow-up DMG multiplies separately from 4pc ATK bonus, creating compounding effects.
Optimal Scenarios
Excels in:
- Sustained combat (Memory of Chaos floors 10-12)
- Single-target bosses with large HP pools
- Multi-wave encounters (stacks carry between waves)
Synergies:
- E4: +2 Energy per Lightning-Lord hit → more Ultimates → more hits
- E6: Vulnerable stacks (+12% DMG taken, max 3) amplify ATK-boosted damage
- E1: Doubled splash damage (50%) scales with ATK bonus
Substat Priority
Focus CRIT Rate/CRIT DMG since set provides ATK. Reach 70%+ CRIT Rate, then balance CRIT DMG.
Main Stats:
- Body: CRIT Rate or CRIT DMG
- Feet: SPD or ATK%
- Sphere: Lightning DMG%
- Rope: ATK%
SPD substats targeting 134-135 improve action economy without sacrificing offense.
Beast Tamer: Deep Dive

Mechanics and Triggers
2pc grants +16% CRIT DMG unconditionally. 4pc adds +32% CRIT DMG when summon is active (total +48%). Lightning-Lord's persistent presence = 100% uptime. No ramp-up time—full bonus activates instantly when Lightning-Lord appears.
Performance Characteristics
Advantages:
- Immediate damage (no stacking required)
- Superior burst windows
- Consistent performance turn 1 through 10+
CRIT DMG Scaling: With 70-90% CRIT Rate, majority of hits crit. +48% CRIT DMG effectively increases damage ceiling by that percentage on crits. Scales multiplicatively with existing CRIT DMG investment.
SPD Requirements
No specific SPD requirements for activation. However, 134-135 SPD optimizes action economy. Lightning-Lord's SPD scales independently (+10 per stack), so Jing Yuan's personal SPD matters less for summon frequency.
Damage Calculations: Testing Framework
Base Assumptions
Level 80 Jing Yuan:
- Base: 698 ATK, 99 SPD
- Target: 2500-3000 ATK, 70-90% CRIT Rate, 140-160% CRIT DMG, 134-135 SPD
- Light Cone: Before Dawn S1 (+36% CRIT DMG, +18% Skill/Ult DMG, +48% follow-up DMG)
- Traces: All maxed (Talent/Skill/Ult level 10, all bonus Traces)
Damage Formula
Base Damage = Ability Multiplier × ATK
Total Damage = Base × (1 + DMG%) × (1 + CRIT DMG) × DEF × RES × Vulnerability
Lightning-Lord: 66% ATK per hit.
- Grand Duke's +48% ATK increases ATK component (affects Base Damage)
- Beast Tamer's +48% CRIT DMG increases CRIT multiplier (affects Total Damage on crits only)
Enemy Assumptions:
- Level 95 (MoC floors 10-12)
- DEF Multiplier: ~0.465 (reduces damage ~53.5%)
- Lightning RES: 0% (neutral)
Grand Duke vs Beast Tamer: Direct Comparison

3-Turn Cycle Performance
E0 Damage: 515,691 total
E6 Damage: 791,482 total
Grand Duke 3-Turn:
- Turn 1: Base damage (no stacks)
- Turn 2: +48% ATK (full stacks)
- Turn 3: +48% ATK maintained
- Average increase: ~32% (accounting for ramp-up)
Beast Tamer 3-Turn:
- Turn 1-3: +48% CRIT DMG active continuously
- With 80% CRIT Rate: Effective increase ~30.7%
Result: Nearly identical performance. Grand Duke slightly ahead since ATK affects all damage (including non-crits).
AoE Performance
Grand Duke: ATK bonus increases base damage before splash calculations. In 3-enemy scenarios, 25% splash also benefits from +48% ATK.
Beast Tamer: CRIT DMG applies to primary and splash on crits. Splash has independent crit rolls, creating variance.
Pure Fiction (5+ enemies): Grand Duke ensures every hit deals increased damage regardless of target. Beast Tamer depends on crit RNG across multiple targets.
Sustained Combat (10+ Turns)
Grand Duke: Permanent +48% ATK after ramp-up. 3-turn stack duration refreshes continuously.
Beast Tamer: Identical performance turn 1 through 10+. No scaling advantage in extended fights.
Variance:
- Grand Duke: ±8% damage variance at 80% CRIT Rate
- Beast Tamer: ±12% variance at 80% CRIT Rate (±9% at 90%)
Real Gameplay: Memory of Chaos Data
Floor 12 Clear Times
Team: Jing Yuan, Sunday, Robin, Aventurine
Grand Duke: 2:45-3:15 average
Beast Tamer: 2:40-3:10 average
5-10 second difference falls within variance margins. Both achieve 3-cycle clears with optimized rotations.
Cycle Count by Encounter Type
Single-boss (Cocolia, Kafka, Blade): Beast Tamer favored—immediate damage for burst windows.
Multi-wave: Grand Duke favored—stacks from wave 1 carry to wave 2-3.
Boss + adds (Svarog, Gepard): Mixed—Grand Duke benefits from add hits maintaining stacks; Beast Tamer's consistent CRIT DMG applies equally.
Team Comp Impact
Sunday: CRIT DMG buffs stack additively with Beast Tamer (diminishing returns). ATK buffs multiply with Grand Duke. Slight Grand Duke advantage (3-5%).
Robin: ATK% buffs stack additively with Grand Duke. Beast Tamer's CRIT DMG provides better diversification in Robin teams.
Sunday + Robin: Balanced buffs neutralize both sets' advantages. Substat quality determines winner.
When Each Set Wins
Eidolon Breakpoints
E0 (291k 1-turn): Nearly identical performance. Choice depends on substats and existing CRIT DMG/ATK ratios.
E1: Doubles splash (25%→50%). Grand Duke gains 5-8% advantage in AoE.
E2: +20% DMG for 2 turns after Lightning-Lord acts. Slightly favors Beast Tamer (multiplicative with CRIT DMG). Gap narrows to 2-3%.
E6 (791k 3-turn): Near-identical results with optimal substats.
Light Cone Synergy
Before Dawn (S1): +36% CRIT DMG creates diminishing returns with Beast Tamer. Grand Duke synergizes better (+48% follow-up DMG × +48% ATK = multiplicative).
Night on Milky Way (+72% ATK): Favors Beast Tamer—diversifies stats instead of stacking ATK additively.
Content Recommendations
Memory of Chaos: Grand Duke—sustained ATK scaling for high-HP bosses.
Pure Fiction: Beast Tamer—immediate CRIT DMG for fast wave clearing.
Apocalyptic Shadow: Beast Tamer slight edge—burst damage during vulnerability windows.
Hybrid and Alternative Sets
2pc Combinations
Grand Duke 2pc + Thunder 2pc: +20% follow-up DMG, +10% Lightning DMG. Strong during farming transitions.
Grand Duke 2pc + Beast Tamer 2pc: +20% follow-up DMG, +16% CRIT DMG. Balanced hybrid for moderate CRIT DMG builds.
Trade-off: Hybrids sacrifice 15-20% damage vs 4pc sets, but superior substats can offset this.
Planar Ornaments
Firmament Frontline Glamoth: +12% ATK, +18% DMG at 135+ SPD. Synergizes with Grand Duke (additive ATK, multiplicative DMG%).
Inert Salsotto: +8% CRIT Rate, +15% Ult/follow-up DMG at 50%+ CRIT Rate. Pairs with Beast Tamer (CRIT Rate helps maximize CRIT DMG value).
Space Sealing Station: +24% ATK total. Suits both sets, slight Beast Tamer favor (diversifies stats).
Budget Options
Band of Sizzling Thunder 4pc: +10% Lightning DMG, +20% ATK for 1 turn after Skill. Accessible early-game option.
Musketeer 4pc: +12% ATK, +10% SPD. Unconditional bonuses, easily farmable.
Transitional: Prioritize main stat correctness over set bonuses. CRIT DMG Body off-set > ATK% Body on-set.
Build Recommendations
Which Set to Farm First
New Jing Yuan owners: Grand Duke—versatile, works across all content, benefits other follow-up characters.
Established Sunday teams: Beast Tamer—Sunday's ATK buffs create diminishing returns with Grand Duke.
Pure Fiction focus: Beast Tamer—instant damage for wave clearing.
Substat Thresholds
Grand Duke: Min 70% CRIT Rate, 140% CRIT DMG. Prioritize CRIT Rate to 70%, then balance CRIT DMG/ATK%.
Beast Tamer: Min 75-80% CRIT Rate (set value depends on crit frequency). Invest heavily in CRIT Rate, then balance ATK%/CRIT DMG.
Both: Target 134-135 SPD via substats + Feet main stat.
Resin Efficiency
Grand Duke domain: Also drops Wind-Soaring Valorous (benefits Topaz, Dr. Ratio). Good farming efficiency.
Beast Tamer domain: Also drops Pioneer Diver (debuff characters). Less universal value.
Expected time: 3-4 weeks daily resin for 4pc with acceptable substats.
Priority: Farm Cavern sets first, then Planar Ornaments.
Common Mistakes
Misconceptions
Summon damage doesn't benefit from CRIT stats.
False. Lightning-Lord uses Jing Yuan's CRIT Rate/CRIT DMG for all calculations.
Grand Duke stacks reset when Lightning-Lord disappears.
False. Stacks persist 3 turns regardless. Lightning-Lord stays active entire combat.
Beast Tamer needs specific teams.
False. Triggers on Lightning-Lord presence alone, no teammate requirements.
Rotation Errors
Using Basic ATK to save Skill Points: Reduces Lightning-Lord hits drastically. Use Skills; let supports conserve SP.
Delaying Ultimate: Lowers total casts. Use on cooldown for max Lightning-Lord hits.
Ignoring Technique: Loses +2-3 hits at battle start. Always use Technique pre-combat.
Stat Balance
Main stat > set bonus: CRIT DMG Body off-set (62.2%) > ATK% Body on-set (43.2%).
1:2 CRIT ratio: 70% CRIT Rate → 140% CRIT DMG. 80% CRIT Rate → 160% CRIT DMG.
Min 2500 ATK: Don't sacrifice ATK below 2300 for set completion. Use hybrids if needed.
FAQ
Which set is better for Jing Yuan?
Both perform within 5% variance. Grand Duke for sustained combat (MoC), Beast Tamer for burst (PF) or Sunday teams. Choose based on content focus.
How does Beast Tamer work with summons?
4pc grants +32% CRIT DMG when summon active (+48% total with 2pc). Lightning-Lord = 100% uptime. Activates instantly, no stacking.
Best substats for Jing Yuan?
CRIT Rate 70-80%, CRIT DMG 140-160% (1:2 ratio), ATK 2500-3000, SPD 134-135. Grand Duke: favor CRIT stats. Beast Tamer: prioritize CRIT Rate 75%+.
Does Beast Tamer need high SPD?
No SPD requirement for activation. 134-135 SPD optimizes action economy for both sets. Lightning-Lord SPD scales independently.
Can you mix Grand Duke and Beast Tamer?
Yes. 2pc Grand Duke + 2pc Beast Tamer = viable hybrid. Loses 15-20% damage vs 4pc but works during farming or with better substats.
How do Eidolons affect set choice?
E0: Equal. E1: Grand Duke +5-8% (AoE). E2: Gap narrows to 2-3%. E6: Identical (791k). Choose based on team/content, not Eidolons.
Optimize faster with cheap hsr oneiric shards at BitTopup! Best rates, instant delivery, secure transactions. Power up your Jing Yuan build today!


















