Diona is the bartender at Cat's Tail Tavern, even though she despises alcohol. In fact, her sole goal in the industry is to destroy it. Her hatred stems from her father, Draff's, heavy drinking, which led him to be away from her most of the time. She loathes Diluc for the same reason – in her head, wine industry in Mondstadt wouldn't have existed if it wasn't for Diluc.

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This 4-star Cryo character excels as a support. Her kit allows her to protect players with her shield and heal with her burst. While this sounds simple, she actually has some complexity in her gameplay. That may cause players to make some mistakes, as players can see here.

10 Not Building Her With Full HP

Diona is both a healer and a shielder. She is a bow user that bears the Cryo vision, allowing her to be a great support for Physical DPS. Her healing and shields scale with HP, so it might be obvious that players should build her with that stat.

However, since Diona heals with her burst, players might decide to use Healing Bonus on her circlet instead of a third HP%. While this is not a terrible idea, it's certainly situational. Using Healing Bonus on her Circlet does mean Diona will heal more, but her shield will not benefit from it. Meanwhile, using full HP build will improve both her shield and her healing.

9 Building Her as a DPS

Since Diona is a Cryo character, some players might try building her as a physical damage DPS. Diona can easily trigger Superconduct, allowing higher physical damage to the enemies. Since her burst applies Cryo to the enemy every 2 seconds, pairing her with characters like Fischl or Razor is highly recommended for this reaction.

Still, players should keep in mind that Diona is not about damage. Both her skill and her burst deal low damage, so she should not be used as a DPS.

8 Giving Her the Wrong Weapon

As support, Diona should have a bow with supportive abilities. This means most of the 5-stars bow won't be optimal for her. Elegy of the End is the only suitable 5-star bow for Diona.

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Energy recharge or HP is the sub-stat players should want on their weapon. Unlike with 5-star weapons, there are many options to choose from the 4-star options. Sacrificial Bow is the best weapon Diona can have at the moment. It allows her to cast her skill faster, while quickly filling her energy so she can Burst more often.

7 Giving Her Blizzard or Cryo Damage

Building Diona with Cryo damage might sound good, since she's a Cryo user. Moreover, giving her 4-Blizzard Strayer also seems like a great idea since she can freeze enemies easily.

Diona can use any artifact sets and work perfectly, as long as she's built with HP as a priority. Thus, players should not worry too much about giving her the perfect artifact. However, if players wish to maximize her potential, then it's recommended to give her 4-Noblesse Oblige or 4-Maiden. Noblesse will improve her supportive role, while Maiden will improve her healing.

6 Not Using Her Hold Skill

Diona's shield is one of her best aspects as support. It cleanses her party, gives them a movement speed buff, reducing stamina consumption, and of course protects them.

The duration of her shield depends on the number of her Icy Paws that hit the target. On her tap skill, Diona will launch only 2 Icy Paws. If players use her hold skill, then Diona will launch 5 Paws. The difference between tap skill and hold skill is crucial to remember. Most importantly, her hold skill has 75% extra damage absorption on her shield, making it a better option than the tap version.

5 Not Leveling Her Up

Despite being a healer and shielder that scales with HP, most players don't realize that her base HP is low. Diona has 9570 HP on level 90, the fourth-lowest of the 31 playable characters. In fact, all her base stats are on the lower end. Her attack is the seventh lowest, and her defense ranks at fourth lowest.

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As if that's not enough, Diona's ascension stat is also irrelevant to her role: Cryo Damage Bonus. With this in mind, leaving Diona at a lower level can hurt. Be sure to level her up as quickly as possible.

4 Not Utilizing Her Cleanse

Spiral Abyss received an update on 1.2, and further change is applied in the same version. Many players now curse the "Engulfing Storm" debuff. The infamous "11-2" Spiral Abyss has the worst debuff, where players will continuously lose their energy, not allowing them to use their bursts.

But there's a very simple solution to this debuff: Diona. Diona's skill briefly applies Cryo to players' character, allowing them to cleanse the Electro debuff and obtain energy normally. For this job, players might want to use her tap skill instead of her hold skill, to allow her to cleanse more often.

3 Underestimating Her Constellations

Some 4-star characters have underwhelming constellations, so it's understandable for players to underestimate Diona's as well. However, players should really consider Diona's constellation.

Her first constellation gives her back 15 energy after her burst ended – a useful buff, since her burst requires 80 energy. The second constellation further improves her shield and makes it applicable to all other party members in her Co-op. Her sixth constellation also improves her burst, but it can be a little tougher to get.

2 Not Using Her to Create Elemental Reactions

Cryo is an element that balances between offensive and supportive. It can be used offensively with Pyro to create the Melt reaction, and both offensively and supportively with Electro to create the Superconduct reaction. Lastly, it is supportive with Hydro, causing "Wet" enemies to be Frozen.

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Diona's Burst creates perfect situations for those reactions to occur. Players who don't using Diona for such purposes are missing out on a lot of her elemental reaction potential.

1 Not Using Her in Abyss

Diona may not be the best shielder or the best healer, but players should not sleep on her supportive capabilities. Her kit is so unique, it's almost a requirement in the Spiral Abyss.

She has a reliable Cryo application, and she can greatly help with elemental reactions or removing Electro Fatui's shield. Furthermore, she can do this while providing protection and healing for the players' DPS. Additionally, Spiral Abyss comes with various debuffs. Most of them can be cleansed with elemental reactions, and Diona is one of the best for the job.

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