I totally forgot to make this on the contest submission page, and don't want to redo them. Send help.
Intro
Sayu is designed to be a healer-support in Genshin Impact. However, I'm sure that some people would like to build her on damage or hybrid. That's why I'm gonna be making different parts for Sayu's analysis.
For this first one, I'll be testing Sayu's healing potential. I'll try out some weapons and artifacts to see which weapon and build will yield the best healing from Sayu.
Conclusion (TL;DR)
Because Sayu's Elemental burst has a demanding energy requirement (80 energy), it appears that Energy Recharge is the best option for healer Sayu. With Energy Recharge, Sayu can use her burst more, which will result in a higher healing per second.
For her healing, Sayu mainly scales from her Attack, with minor healing that scales with Elemental Mastery. This is unfortunate because you'll have to focus on one over the other. Either you focus on Attack to use her Elemental burst to heal, or build Sayu on Elemental Mastery to additionally heal from her skill. This restriction is voided by C6 Sayu.
However, for team-healing, EM/EM/Healing Bonus performs better than ER. Sayu's Elemental burst only heal one character, while her Swirl heals the whole team. So if your field time is dominated by your DPS, then ER is better. But if your character's field time is spread between the team, then EM is better. For co-op, EM is also better.
When it comes to team healing (EM-focused), Rainslasher is also boosted up the list, placing #3 under Skyward and Katsuragikiri.
Best Weapon for Healer Sayu:
1. Katsuragikiri Nagamasa
2. Skyward Pride
3. Wolf's Gravestone
4. Favonius Greatsword
5. Sacrificial Greatsword
6. Lithic Blade
7. Royal Greatsword
8. Prototype Archaic
9. Rainslasher
10. Blackcliff Slasher
Best Artifact for Healer Sayu:
1. 4-Maiden Beloved
2. 2-Maiden + 2-Gladiator
3. 2-Maiden + 2-Wanderer (Better than Maiden/Gladiator for team heal)
4. 2-Gladiator + 2 Shimenawa
5. 2-Wanderer + 2 Gladiator (Better than Maiden/Gladiator for team heal)
Best Main stat for Healer Sayu:
1. ER/Atk/HB (Best Single Heal)
2. EM/EM/HB (Best Team Heal, better on C6)
3. ER/EM/HB
4. Atk/Atk/HB
Choosing the Weapons
1. Wolf's Gravestone
• Only +20% ATK passive is considered.
2. Skyward Pride
• Damage passive is not considered.
3. Favonius Greatsword
• Passive is not considered.
4. Rainslasher
• Passive is not considered.
5. Royal Greatsword
• Passive is not considered.
6. Sacrificial Greatsword
• Passive is not considered.
7. Katsuragikiri Nagamasa
• Passive regen 6 energy every 10s
8. Prototype Archaic
• Passive is not considered.
9. Lithic Blade
• Will be tested in 0 and 3 stacks.
10. Blackcliff Slasher•
Passive is not considered.
Choosing the Artifacts
1. 4-Maiden Beloved
• 4-set effect bonus is always active.
2. 2-Maiden + 2-Gladiator
3. 2-Maiden + 2-Wanderer
4. 2-Gladiator + 2 Shimenawa
5. 2-Wanderer + 2 Gladiator
Tested main stat:
1. ER/Atk/HB
2. Atk/Atk/HB
3. EM/EM/HB
Note:
ER = Energy Recharge%
HB = Healing Bonus%
EM = Elemental Mastery
To avoid making this analysis too long, I will first test the main stat with 4-Maiden Beloved. Afterward, I will test the rest of the Artifacts with the best main stat.
Simulation and assumptions
1. Sayu is level 90.
2. Talent Level 8, C1.
3. Passive 2 will not be considered.
4. Damage will not be considered.
5. In her 10 seconds roll, Sayu will deal around 10 Swirl reactions. Because Passive 1 only triggers every 2 seconds, she will be simulated to heal 5 times during her Elemental skill.
6. Sayu heals 7 times on her Elemental burst, and once upon cast. Each tick triggers every 1.5 seconds, which means her Passive 1 will not trigger every tick.
𝟽 𝚝𝚒𝚌𝚔𝚜 𝚘𝚏 𝚂𝚊𝚢𝚞'𝚜 𝚑𝚎𝚊𝚕𝚒𝚗𝚐
Sayu will heal off Swirl 4-5 times with her Elemental burst. However, I will only be simulating 3 Swirl heals. It doesn't change the result, so don't worry.
7. Healing is calculated on one character. Team-healing is made in an additional note.
Main stat test
Final Stat
Healing Overview
Simulation Result
Result Overview
Here, we can see that ER/Atk/HB outperforms the other main stats. Atk/Atk/HB places second, and EM/EM/HB performs the least. However, if we consider the team-heal from Swirl (Elemental Mastery), we'll get this result:
As you can see, EM now is far ahead of the other two sets, with Attack being the worst of the three. I also tried ER/EM/HB, and EM/EM/HB is still somewhat better than Energy Recharge.
Next, I will test ER/Atk/HB on different artifact sets.
Artifact set test
Final Stat
Healing Overview
Simulation Result
Result Overview
Personal Opinion
The results aren't very surprising. 4-Maiden is easily the best when it comes to healing. Unfortunately, this artifact set is not very useful at the moment. Hopefully, sometime soon, Genshin Impact will feature content that demands healing. I'm pleased that the F2P Claymore managed to take the top spot for Healer Sayu. It appears that the little Ninja badly needs Energy Recharge to perform nicely. As for her damage, we'll see it in another analysis!
Personally, I've never needed team healing. When my character gets damaged, it's always my main DPS, with the other characters remaining intact. This is why I focus on single-heal over team-heal. If I ever build a healer Sayu, I'd probably got for ER/EM/HB. I don't think too much single heal is necessary, considering over-healing currently doesn't have any additional effect.
So I won't go for ER/Attack, and use EM on the goblet instead, just in case something went wrong with the team.
As usual, if you have any questions, corrections, or feedback, feel free to throw them in the comment!
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