Shattersoul (staff weapon skill) - Duration does not vary with TP.

[Anomie]

Platform: Windows 11 Home
ISP: Fidium
Type of Internet Connection: Optic Fiber
Internet Connection Speed: 300 Mbit/s
Date & Time: Aug. 9, 2025 16:19 PDT
Frequency: Once
Character Name: Antisense
Race: TarutaruF
World: Ragnarok
Main Job: Scholar, Lv.99 (M.Level 24)
Support Job: Samurai
Area and Coordinates: Ceizak Battlegrounds, J-6
Party or Solo: Party with 1 trust (Moogle)
NPC Name: None
Monster Name: Fluffy Sheep
Steps:


Gained TP on various Fluffy Sheep in the area using the "Attack" command and being damaged by Fluffy Sheep.
Used Shattersoul with 1205 TP on one Fluffy Sheep for 4178 damage. <pos> in chat returned 4:19:11pm as the time of occurrence.
I allowed the Fluffy Sheep that incurred 4178 damage from Shattersoul to remain alive.
Chat log message stating "The Fluffy Sheep's Magic Def. Down wears off." appeared. <pos> in chat returned 4:21:10pm as the time of occurrence.
Gained TP on various Fluffy Sheep in the area using the "Attack" command and being damaged by Fluffy Sheep.
Used Shattersoul with 3000 TP on one Fluffy Sheep for 4913 damage. <pos> in chat returned 4:22:37pm as the time of occurrence.
I allowed the Fluffy Sheep that incurred 4913 damage from Shattersoul to remain alive.
Chat log message stating "The Fluffy Sheep's Magic Def. Down wears off." appeared. <pos> in chat returned 4:24:36pm as the time of occurrence.

[Zuidar]

If that's the case, then something else has to be influenced by TP instead of duration if it's 120 seconds across the TP board. Chance of Effect maybe? Still good catch on that

[Anomie]

Vidohunir help description


Lowers target's magic defense. Duration of effect varies with TP.

Vidohunir's unresisted duration does vary with TP, from 60 to 180 seconds from 1000 TP to 3000 TP.

Shattersoul help description


Delivers a 3x attack that lowers target's mag. def. Duration varies with TP.

If the duration of the magic defense down effect is not varying with TP, then to what is "duration" referring? Average duration accounting for outright misses?

[Uroah]

Shattersoul is actually "chance of effect landing with tp" not "duration based on tp"

This has been known and unfixed since 2013.

[Anomie]

It seems the discrepancy in the Japanese help text and the English help text has been present since the December 14, 2011 version update (https://forum.square-enix.com/ffxi/threads/18132-December-14-2011-%28JST%29-Version-Update) (goes further back than 2013).

The Japanese help text describes Shattersoul as a 4-hit weapon skill with the probability of the status effect (magic defense down) varying with TP.


4回攻撃。追加効果:命中率ダウン。TP:追加効果継続時間修正。

Given that the June 7, 2017 version update (https://forum.square-enix.com/ffxi/threads/52747-Jun.-7-2017-%28JST%29-Version-Update) identified Shattersoul as being one of the weapon skills with additional effects where "The chance for the additional effects ... to activate has been increased," the Japanese help text is probably the correct description. However, I did not validate the four-hit vs three-hit aspect as I wasn't paying attention to that.

I'd like to see what comes from this as there was a similar situation with Exenterator as far as "Duration of effect varies with TP" being in the English help text (but this was also in the Japanese help text) but the duration didn't appear to vary with TP circa 2012. (A later version update on December 10, 2014 (https://forum.square-enix.com/ffxi/threads/45365-Dec-10-2014-(JST)-Version-Update) addressed weapon skill damage adjustments (not additional effects). That Exenterator invariant duration might have been fixed without a note.