Finally got around to testing this...a year and a half later (x.x)
First, player resistance testing done
>>here<<,
>>here<< and
>>here<< has shown that different resistance tiers are achieved depending on whether a player has negative, neutral or positive elemental resistance. This testing, however, has only covered how elemental damage capable of resist states 0-3 interact with player resistances. In this post I wanted to explore further how 2-state negative status effects interact with player elemental resistances and how Bar-status spells play their role and expand upon previous testing.
I began by gathering data sets as an Mlvl 0 WAR/RDM in Bhaflau Thickets and cast Poison on the Colibri (Lvl 71-73) around (F-8) and (G-8), and recorded the results of the reflected Poison spells with 0, +1 and -1 water elemental resistance. I avoided testing on Watersday/Thundersday and used equipment with high magic evasion (Nyame) to ensure capped magic evasion. Note: while player cast Poison had its duration increased during the
Mar 26, 2015 (JST) Version Update, monsters still use the old spell durations which will be reflected here.
0 Water Resistance
30 Sec. Duration: 29 (5.8%)
15 Sec. Duration: 34 (6.8%)
Full Resist: 437 (87.4%)
+1 Water Resistance
30 Sec. Duration: 26 (5.2%)
15 Sec. Duration: 32 (6.4%)
Full Resist: 442 (88.4%)
-1 Water Resistance
30 Sec. Duration: 19 (4.75%)
15 Sec. Duration: 381 (95.25%)
Full Resist: 0 (0%)
There are many conclusions we can infer from the data above:
-At 0 resistance, it is still possible to fully resist a negative status effect given enough magic evasion, unlike with elemental magic damage.
-There doesn't seem to be any real change between having 0 and +1 elemental resistance with capped magic evasion as far as granting an additional resistance tier as is done with elemental magic damage. Any positive resistance likely only adds magic evasion against relevant negative status effects.
-Negative resistance appears to induce a guaranteed 1/2 duration for 2-state negative status effects cast upon the player regardless of magic evasion.
Now, to replicate
Lute's testing I cast Barpoison as WAR/RDM (Enhancing Magic skill: 160) and added -water elemental resistance via different pieces of gear while having Poison reflected back until I was no longer able to fully resist the spell. I took 10 samples at each increment tested which should be enough to find the value at which a guaranteed half duration is induced. I'll only post the relevant values where I saw obvious changes occur.
*Important Note* For some additional context before reading this data,
in the comments section of Lute's post there are multiple reports of the values of various Bar-status spells changing over the course of several months as they tried to fix the bug with Sroda Necklace granting the incorrect amount of resistance to characters with master levels. Any values posted below that differ from Lute's results are likely a result of these fixes/adjustments since the time those reports were made.
-30 Water Resistance + Barpoison
30 Sec. Duration: 1
15 Sec. Duration: 1
Full Resist: 8
-31 Water Resistance + Barpoison
30 Sec. Duration: 1
15 Sec. Duration: 9
Full Resist: 0
Barpoison seems to grant +30 resistance/magic evasion to Poison which contradicts previous testing.
Next, I changed to Mlvl 35 RDM/WHM and rechecked Barpoison's effect when cast with 559 Enhancing Magic skill. This is just the amount of Enhancing Magic skill in my Bar-status spell set.
-30 Water Resistance + Barpoison RDM
30 Sec. Duration: 0
15 Sec. Duration: 0
Full Resist: 10
-31 Water Resistance + Barpoison RDM
30 Sec. Duration: 1
15 Sec. Duration: 9
Full Resist: 0
There was no change in the amount of resistance granted with much a higher Enhancing Magic skill nor was there any change regarding a job with master levels. Barpoison's new value seems to be set at +30 regardless of skill level. Next, I checked Barpoison's effect when combined with Sroda Necklace.
-50 Water Resistance + Barpoison + Sroda Necklace
30 Sec. Duration: 0
15 Sec. Duration: 0
Full Resist: 10
-51 Water Resistance + Barpoison + Sroda Necklace
30 Sec. Duration: 2
15 Sec. Duration: 8
Full Resist: 0
Sroda Necklace seems to be fixed now and grants its stated value of +20 for a total of +50 resistance. Now, how does a spell with an innate magic accuracy bonus interact with this resistance value? Next, I had Poison II
(innate +30 magic accuracy bonus) reflected back and rechecked the resistance values.
-30 Water Resistance + Barpoison, Poison II
120 Sec. Duration: 1
60 Sec. Duration: 2
Full Resist: 7
-31 Water Resistance + Barpoison, Poison II
120 Sec. Duration: 1
60 Sec. Duration: 9
Full Resist: 0
Poison II's innate magic accuracy bonus had no effect on the values at which Barpoison stopped taking effect. With this data we can infer that a spell's native magic accuracy bonus/penalty is not a factor when determining elemental resistance tiers, only the player's elemental resistance value and any Bar-status spell applied.
Afterwards, I checked Barparalyze, Barblind and Barsleep. The values for these spells matched Barpoison's values with (+50) and without (+30) Sroda Necklace.
Next, I performed the same testing with Poison and Barpoisonra.
-20 Water Resistance + Barpoisonra
30 Sec. Duration: 0
15 Sec. Duration: 0
Full Resist: 10
-21 Water Resistance + Barpoisonra
30 Sec. Duration: 0
15 Sec. Duration: 10
Full Resist: 0
This value of +20 resistance surprised me as I would have thought the area of effect version would have been the same/stronger than the self-target version. I rechecked the values with Sroda Necklace equipped.
-40 Water Resistance + Barpoisonra + Sroda Necklace
30 Sec. Duration: 1
15 Sec. Duration: 0
Full Resist: 9
-41 Water Resistance + Barpoisonra + Sroda Necklace
30 Sec. Duration: 0
15 Sec. Duration: 10
Full Resist: 0
Sroda Necklace's bonus seems to be applying correctly for a total of +40 resistance. I did some more testing with Barparalyzra, Barblindra and Barsleepra and found the values for these spells matched those of Barpoisonra with (+40) and without (+20) Sroda Necklace. I'm not sure if these are supposed the be the expected resistances granted for the AoE versions of the Bar-status spells, but these are the current values as of this posting.