Full analysis
Notes:
- Echoes being emitted are indicated by a red hemisphere expanding outwards from the T-doll emitting the echo.
- Non-ARs/SMGs can receive and emit echoes, but they do not benefit from any buffs.
- Ribeyrolles Mod’s skill 2 buffs stack multiplicatively.
- Retreating her does not stop the echoes.
- Echoes cannot be emitted by units that are moving, moving units delay their echoes until they stop moving.
- When receiving an echo, an ally unit emits 1 echo 2 seconds later. Even if they receive more than 1 echo stack within 2 seconds, they only emit 1 echo. After emitting that echo, the ally unit does not emit any more echoes until receiving another.
- Each echo stack has its own 6 second duration
- Ribeyrolles Mod’s echoes reset the 2-second internal echo timer for adjacent nearby units that have echoes, preventing 2 directly adjacent T-dolls from emitting an echo at the same time.
- This usually locks the whole team into a 4-second cycle, where half the units emit an echo in the first two seconds and the other half emits an echo in the next two.
- Many non-T-dolls can also receive and emit echoes, such as taunt fairy, twin fairy, General Liu clones, P90 clones, Welrod Mod shield, Agent 416 mines, etc.
Due to the limited duration of an echo stack, the number of echo stacks a T-doll can have relies heavily on how many units are adjacent to them.
Basically, a unit with 1 other adjacent unit alternates between 1 and 2 stacks every 2 seconds. 2 adjacent alternates between 2 and 3 stacks every 2 seconds. 3 adjacent stays at 3 stacks permanently. This cycle starts within 4 seconds of the first echo being received.
It is physically impossible to get 3 stacks on only 5 units at all times. F formation has 1 adjacent to position 1, 3 adjacent to position 4, and 2 adjacent to the rest. B formation is the same except it’s position 7 that’s left out. C formation gives the backline 2 adjacent and both frontline units only get 1 adjacent unit. Cross formation gives one unit 3 stacks and everyone else only has 1 adjacent.
This is unfortunate, because it means at least one DPS always misses out on the optimal number of stacks. Moving Ribeyrolles Mod to the blank space means she no longer gives her skill 1 buff to both DPSes. C formation is the best for DPS, Q and D formation are best for survival.
Due to the slow spreading nature of Ribeyrolles’ skill 2 means she is not just a burst DPS buffer. A good portion of her buff is tied in the skill 2 echoes, which take around 4 seconds after using her skill 1 to fully kick in. It’s only after the second skill activation onwards that she provides her maximum buffs. She is actually quite fine even for longer duration fights, prefers them even. More fighting time gives her more time to spread her echoes.
For optimal DPS and on the assumption that Ribeyrolles is Mod 3 instead of Mod 2 for some reason, Ribeyrolles does actually prefer her special equipment over the VFL. Her preferred body slot is the #2 processing chip because her base rate of fire is so bad.