Primer to Fiend Hunt

Primer to Fiend Hunt

You’ve completed all the story and character packs, conquered the Tower of Pride, and found yourself in a comfortable spot in Mirror Wars. What’s the next challenge? Prepare yourself for this game’s endgame PvE mode — Fiend Hunt.

Fiend Hunt is an endgame challenge that puts your teambuilding skills to the test. Each season of Fiend Hunt is two weeks long:

  • Week 1 — Preparation Period, where we can preview the Fiend’s skills and stats.
  • Week 2 — Hunting Period, where we battle the Fiend each day in order to clear the highest levels we can.

Thus, we can battle either a new fiend or a rework of an old fiend every two weeks.

Rewards Preview

Each Hunt will reward you tickets based on the highest level you’ve cleared and your rankings at the end of the Hunt:

  • 3 tickets per level, up to level 10.
  • 3-5 tickets, based on your ranking at finalization:
    • Rank 1-100 — 5 tickets
    • Rank 101-1000 — 4 tickets
    • Rank 1001+ — 3 tickets

This means that at a minimum, you can earn 33 tickets every two weeks just by clearing level 10 each Fiend Hunt! Each fiend has 15 levels, but levels 11-15 only reward gold, so you do not need to bother with these levels unless you want to compete for rankings.

Fiend Hunt Mechanics

► Fiend Levels

As stated earlier, each Fiend features 15 levels, with the first 10 rewarding tickets for clearing. The Fiend’s stats start off really low, but it scales dramatically as its level increases. This means that the first 5 or 6 levels are often freebies (brand new players can easily clear level 4 at the very least), but it becomes a proper challenge at level 8 and above, requiring proper investment.

We have 7 days to hunt the Fiend, and each day is a new battle. Each day we can fight the Fiend any number of times. If we can beat the Fiend on a given day, we can immediately challenge the next level. If not, then at the end of the day, our best run is saved, and we fight the fiend with that much damage taken on the next day. 

Because of this mechanic, we can convert the Fiend’s HP values per level to Damage Thresholds, which tells us how much damage we need to be able to deal in a single run to clear a certain level by day 7.

Each of my Fiend Hunt guides will have this table, so you can get a sense for how much damage you need to deal in order to clear level 10.

► Team Formations

Fiend Hunt is multi-team content. At first, we’ll only need one team, but given how easy the first five levels are, we will definitely be needing at least two teams for levels 6-10, and a third team if you're interested in competing for ranks at levels 11+. Not to worry, however, since depending on how each Fiend works (and the fact that we only have one Diana) you may only need one high damaging team, with the other teams instead providing utility.

► Fiend Skills

Each Fiend has a combination of standard and conditional skills. These skills cannot be evaded, and if a specific skill has Fixed targeting, that skill cannot be redirected with a taunt. The Fiend cycles through its standard skills, looping back to its first skill after it has used its last skill. 

Conditional skills can be triggered if specific conditions are fulfilled, which is then used instead of a standard skill. If two conditions are fulfilled, the skill with a higher priority is triggered. Each team can only trigger each conditional skill once. Conditional skills do not replace standard skills, only delay them.

For example, if C1 is triggered after S2, S3 will be the next skill used unless a different conditional skill is triggered. It is currently unknown how conditional skill priority works, but for now I’ll assume the priority is from left to right (e.g. C1 has a higher priority than C2).

As seen just now, I will refer to standard skills with the prefix ‘S’, and conditional skills with the prefix ‘C’ in Fiend Hunt guides.

► Key Units

In order to prepare yourself for Fiend Hunt, it is recommended to invest in the following units:





[Adventurer of the Unknown] Diana is the queen of PvE, and Fiend Hunt is no exception. She can multiply your damage nearly two-fold with her elemental advantage buff. If you have her other costume [Anti-Dystopia], she can also mitigate the damage of key turns in Fiend Hunt.

[B-Rank Idol] Helena is the premiere magic buffer, with a whopping 50% crit rate buff at +5. Your magic teams won’t have to suffer with crit fishing, and between the healing from this costume and the damage reduction from [Top Idol], she can help you survive fights.

[Homunculus] Lathel has the highest teamwide ATK buff in the game, significantly increasing the damage ceiling of your team. However, given that he does not provide crit rate, you may want to use Arines instead for a worse but more comfortable clear.

Celia sees play in almost every single Fiend Hunt, given that she can debuff ATK or MATK with her costumes [The Curse] and [The Descendant of the Great Witch], while providing a significant number of chains in a 3×3 AoE. If you have her winter limited costume [Masquerade Bunny], her chain utility doubles!

Finally, try to invest in a DPS for each element. This way you can have a core DPS for each Fiend Hunt, no matter its element typing.

I regularly post guides for Fiend Hunt, so stay tuned for those!