This is my first post and I wanted it to be important. With many people pulling Hiyuki and many pushing for S6 I thought it would be relevant to post this.
My Hiyuki is S6R5 using 43311 with Atk% Glacio atk% and the picture included in this post is assuming buffs are all up from every source in the team. (S6R5 Hiyuki, Lynae, and Chisa)
Even at S6R1 the point of this post still holds true.
For a high-investment S6 Hiyuki running with Chisa and Lynae, there is a common "Crit Trap." While Crit DMG looks impressive on the stat sheet, stacking it past a certain point actually lowers your total damage compared to building Attack.
The optimal efficiency ratio for S6 Hiyuki is 100 Total ATK : 10% Stat-Sheet Crit DMG. Because her S6 provides a +500% CDMG nuke. Make sure not to dip below this ratio or you might be better off using Crit DMG 4 cost instead.
1. Phase 1: The Build-Up (Intro → Skill → BA 3 → Forte)
- At a base sheet of ~310% Crit DMG, this is already extremely high. By using an ATK% 4-cost (aiming for ~2800+ ATK), there is a much stronger "base" for her Forte and Skill hits. In this phase, the ATK% build matches or slightly outperforms the CDMG build because it balances her two main scaling stats (atk & cd).
2. Phase 2: The S6 Nuke (Resonance Liberation 1 & 2)
- The Saturation: S6 grants a unique +500% Crit DMG buff. During her first and second ults, shes effectively hitting with over 800% total Crit DMG.
- Diminishing Returns: In this "Saturation Zone," adding +44% Crit DMG from an Echo only gives you a ~5.4% total damage increase.
- Adding +33% ATK instead provides roughly a ~10-12% damage increase. Because the crit multiplier is already high, increasing the base Attack it multiplies is the only way to significantly raise your damage ceiling.
3. The "Perfect" Build Benchmarks:
- ATK (2800+): Critical for scaling the massive S6 Liberation multipliers.
- Crit Rate (100%): Absolute priority. At 800% CDMG, a non-crit is a massive DPS loss.
- Crit DMG (~280%): The ideal stat-sheet base before S6 500% cd buff for ult 1&2
- Energy Regen (120-130%+): The sweet spot for seamless rotation looping.
- Lib. DMG Bonus (50%+): Essential to ensure your third multiplier bucket is also contributing.
tldr: Even if your stats don't reach as high as 2800 atk or 300cd the principle still stands as long as theres a healthy ratio. Increasing a small number by a large number isn't as good as increasing a large number by a slightly smaller number. the atk% benefits her build more than cd% for the 4 cost echo.
