Vivi

Innocence

Front row

Magic damage

Dragons

Tank

Here to See Your Girl?

Casts a silver shield that absorbs damage on herself. If the shield is destroyed or its duration ends, it reduces the defence of nearby enemies.
■ Shield: 64% of Max HP
■ Shield Duration: 6s
■ Defence Reduction: 40%
■ Defence Reduction Duration: 7s

Quick Silver Lance

42 sec Cooldown

Throws a mercury spear, dealing Magical Damage to the furthest enemy within the designated range and casting a Shield on herself.
■ Magical DMG: 1130%
■ Shield: 64% of Max HP
■ Shield Duration: 6s

Passive

Recovers HP when a Normal Attack hits:
■ HP Recovery Per Hit: 10.4% of Max HP

Normal ATK

Manipulates blades, dealing Magical Damage to enemies twice.
■ Total Magical DMG: 75%
Enhance:
Rains down blades 4 times, dealing AoE Magical Damage to enemies.
■ Total Magical DMG: 260%

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