[Armando]

I'm on CoP 6-4 and I noticed FFXIClopedia's article on the mission mentions that NINs may want to consider using Jack-o'-Lanterns for food, since the Arcana Killer may supposedly proc on U/O. Since I hate banking on an unquantified bonus, I decided to test the proc rate.

Test Conditions:
Defender: Lv.75 PLD/RDM
Defender CHR (in case anyone wants to know): 66
Attacker: Chaos Idol, Lower Delkfutt's Tower

Data:
Number of swings (landed or missed) and intimidations in the chat log: 334
Number of intimidations: 16
Number of swings: 318

Analysis:
Before we proceed, it should be noticed that the mob's Double Attack needs to be taken into account; the number of hits/misses/intimidates in the chat log isn't the number of attack rounds that happened since Double Attack adds extra hits, and a mob can be intimidated on an attack round that proc'd DA, preventing 2 hits instead of 1 as well. So, based on what we know, we have two formulas:

(Number of Attack Rounds) * (Intimidation Rate) = 16 Intimidations
(Number of Attack Rounds) * (1 - Intimidation Rate) * 1.1 Double Attack Rate = 318 swings

The first formula is straightforward, the second basically says that the number of swings (hits or misses) that would occur is equal to the number of attack rounds that didn't proc Arcana Killer (hence the 1-Intimidation Rate), plus the extra hits from DA (hence the x1.1 from DA).

Anyways, solving the first formula for Number of Attack rounds yields Number of Attack Rounds = 16/(Intimidation Rate). Plugging that into the second formula, we can solve for Intimidation Rate, which is 0.0524 with these numbers.

Bottom line: Arcana Killer from Jack-o'-Lanterns has a 5% proc rate.

Personally I wouldn't rely on 10 Evasion and 5% intimidation rate on a mob that hits like a truck. Defense food (especially Pescatora with its HP bonus) seems like a far more reliable choice for fighting U/O.

EDIT: Boring as hell test, I know. I figured I'd post it since I haven't posted anything in a while, and for the sake of posterity I guess. If you guys are lucky, I'll test if healing yourself via Potions gives the same hate as Curing yourself for the same HP amount. It would be interesting if true, for NIN tanks.

[Callisto]

Regarding the potion dealy, not that I've specifically tested it but I can tell you from Salvage experience they don't give any hate past whatever actually using an item(if that gives any) does.

[Armando]

That's interesting. I take it in Salvage you use Temp items? And what meds are generally popped there? Maybe stuff like Elixers have fixed hate.

[Armando]

Bump! To my surprise, the hate from Hi-Pots is quite substantial, and seems to be completely independent of the amount healed. The hate is 1 CE and somewhere between 618 and 638 VE. I'm gonna try to pin down the exact number, but that's a pretty good order-of-magnitude approximation for the time being. Comparable to spamming Bind and Blind, and faster to pull off too.

[Callisto]

Perhaps it's different with Temporary Items then, such as the Salvage case. Interesting to know, thanks for looking into it.

[Armando]

Maybe it's just that HP/MP restoration items all give the same amount of CE/VE as Hi-Potions, but since something like an Elixer would pretty much restore all your HP/MP, you wouldn't notice from popping one. Hi-Potions only recover 100 HP at a time so you need to spam them, making the hate gain more obvious. I'll give this its own thread for posterity once I pin down the exact number.

This is going to have terrific repercussions on our U/O run. I'm gonna tell the NIN tank to use these every chance he gets, and to spam 2 or 3 in quick succession if he ever loses hate while Provoke is down. These just became a very useful hate tool.