Jung Da-in

Jung Da-In is one of many damage-boosting operators, providing a massive 50% ASPD boost to all allies for 12 seconds.

In PVE, her massive ASPD boost can be situationally helpful. However, the trigger order needs a team to be tailored to it (especially because it needs a defender). This makes her completely unsuitable for a lot of content, where the optimal comps do not use a Defender at all. Thus, she’s only really used in situations where the extra ASPD is really, really needed, and when a Defender has to be used, like in certain Danger Close bosses.

Bear in mind, Jung Da-In’s damage buff has to compete with Kim Hana’s value.

In PVP, Jung Da-In represents the “best” generic damage operator for when you aren’t playing a Counter comp, you don’t need the utility from Serina Crew’s buff removal, and you don’t need the 1 DP/ sleep immunity from Kim Hana. In short, she is never going to be the best operator for a given comp.

Jung Da-In’s issue holding her back is her awful trigger order. Ending on a striker imposes severe team building constraints:

• Bringing a frontline striker means spending DP on a unit who won’t contribute damage. This creates a situation where the Jung Da-In proc ends up being used to “catch up” on damage that you would otherwise have gotten from an equivalent amount of DP spent on a proper DPS unit.

• Bringing Ifrit means running a mediocre DPS unit that struggles to keep up with other damage dealers.

• Bringing an awakened striker makes the comp incredibly inflexible and clunky to play.

It should also be noted that Jung Da-In’s buff is not as strong as it looks. Between the ASPD buff being diluted by other sources of ASPD, ASPD not affecting skill damage, and your units getting disrupted from various sources, Jung Da-In’s overall damage increase is far less than what 50% ASPD would suggest.

It is easy to imagine yourself triggering Jung Da-In with a full team deployed ready to take the buff, but in practice she is incredibly awkward to use.