| MATK | 352 |
| HP | 2016 |
| MRES | 10% |
| CR | 10% |
| CDMG | 50% |
Helena is a Magic 
Light Support that offers both defensive and offensive (magic) buffs. Her buffs having full uptime while also being teamwide and cheap makes her a very strong buffer for magic teams.
Check out my other Character Guides:
Strengths and Weaknesses
＋Helena's crit rate buff at +5 make magic teams much more consistent.
＋Her skills are incredibly cheap, and she's even SP positive after enough upgrades.
＋[PvP] Her buffs are busted for 1 SP.
－Her defensive utilities may be strong, but they're currently situational.
－Her most important upgrades are locked behind +5.
Costumes
Helena currently has 2 costumes, Top Idol and B-Rank Idol. (Don't get them confused!) Top Idol offers damage reduction and SP gain while B-Rank Idol offers an MATK buff, a Crit Rate buff, and healing.
Top Idol
Ally
Let's Sing Together!
SP ◆ 2 — CD ● 5 Turns
Decrease incoming DMG by 30% for 4 turns. Acquire 4 SP.
Skill Potential 1
DMG Reduction +10%
Skill Potential 2
CD -2 Turns
Skill Potential 3
DMG Reduction +10%
| +1 | +2 | +3 | +4 | +5 |
|---|---|---|---|---|
| DMG Reduction | DMG Reduction | SP Cost | DMG Reduction | SP Gain |
| 30% ▸ 37% | 37% ▸ 44% | 2 ▸ 1 | 44% ▸ 50% | 4 ▸ 6 |
Top Idol is Helena's base costume, recruitable in the pub's rotating pool.
This costume's damage reduction isn't too important outside of high-level fiend hunt and PvP, but when you do need the defensive utility, this costume is really good at it. However, she does need a couple upgrades to start being effective at it. DMG Reduction only starts being good at 50%, so she needs that much at least, and past 50% is when it becomes really good; 70% DMG reduction is very strong.
This costume also has nice battery utility, although it only really shines at +5, when she generates 5 SP per cast. If you're using Helena for her MATK buffs on B-Rank Idol, you're likely using this costume even at +0 to generate 2 SP at least.
Skill Potential 2 makes it so that Helena can simply alternate between her two costumes, giving her damage reduction 100% uptime and making her SP generation more frequent.
Key Upgrades: Skill Potential 2, DMG Reduction upgrades are niche but strong at ≥50%.
B-Rank Idol
Ally
I'm Rooting for You!
SP ◆ 3 — CD ● 3 Turns
Increase Magic ATK by 35% for 4 turns. Heal allies' HP based off of 50% of Magic ATK every turn for 4 turns. Increase Crit Rate by 25% for 4 turns.
Skill Potential 1
MATK Buff +20%
Skill Potential 2
SP Cost -1
Skill Potential 3
MATK Buff +20%
| +1 | +2 | +3 | +4 | +5 |
|---|---|---|---|---|
| MATK Buff Heal | MATK Buff Heal | SP Cost | MATK Buff | Crit Rate Buff |
| 35% ▸ 45% 50% ▸ 75% | 45% ▸ 55% 75% ▸ 100% | 3 ▸ 2 | 55% ▸ 75% | 25% ▸ 50% |
B-Rank Idol is a premiere buffer, whose only weakness is having a slightly lesser MATK buff compared to Medical Club Teresse. However, her crit rate buff (especially at +5) more than makes up for this in all content outside of Fiend Hunt. 50% crit rate is a massive consistency buff, making PvE content much less infuriating from crit fishing.
In PvP, this costume is completely busted in the attack opener once it costs 1 SP, enabling magic DPS units to get away with using Venomous Touch as their accessory, while also allowing Anti-Dystopia Diana to double her energy guard output.
The healing on this costume is just a cherry on top for Helena's overloaded kit.
Key Upgrades: Everything.
Building Helena
Since Helena is a support, you can get by with just giving her defensive gear to make her tanky, but you may also want to give her gear to make her heals better (reminder that heals can crit).
Top Idol
Exclusive Stat — 57 MATK
This gear is definitely not necessary on Helena, since it really only gives her more stats for her heal (or her basic attack if you're using that in PvP).
Bond Potential
| HP | 62.4% |
| Magic Resist | 13.4% |
| - | - |
| HP | 410 |
| MATK | 52% |
| - | - |
Simply make Helena more tanky with Top Idol bonds. In PvP, this allows her to more easily hit 110 MRES to resist Eclipse's shred.
＋
or
＋
Build 90 DEF or 90 MRES based on the enemies you're facing. In PvP, you may want to build 110 MRES to potentially withstand Eclipse (although elemental disadvantage works against her).
