Belita

Madness

Back row

Magic damage

Witches

DPS

Dimensional Burst

Activates a blast of dimensional energy, dealing AoE Magical Damage to enemies.
■ Magical DMG: 903%

Crimson Rain

Cooldown: 22
Activates a downpour a Crimson Rain, dealing AoE Magical Damage 12 times to enemies.
■ Total Magical DMG: 1939.2%

Passive

Increases Incoming Damage to Front Row Apostles.
■ Incoming DMG Increase to Front Row Apostles: 84%

Normal ATK

Activates Explosion Magic, dealing AoE Magical Damage to enemies.
■ Magical DMG: 75%
Enhance:
At a set chance, activates Explosion Magic with concentrated mana, dealing AoE Magical Damage To enemies.
■ Magical DMG: 200%

Skill priority

You will level up most skills regardless how useful they are for the combat power padding in endgame. As a general rule of thumb:

Units you are not sure you will use long term: Skills to level 4. If they're passives that benefit the team, can take that to 7.
Strong units but not your main personality: Skills to level 7 for raids and elemental content. Not worth going higher if they are not your main team.
Strong units on your main personality (and waifus): Max out skills. You can start with 7/7/7 and slowly work towards 12/12/12 when you can sweep stage 10.

Recommended artifacts

Artifacts and runes will always change depending on the stage and content you are currently facing, this is just a couple of examples on what items work for this Apostle.

Legendary