To those of us who want to go for the crazy-ass tournesol, lets compile a guide with more specific info than has been given. What I want is for people to contribute additional info like where specifically mobs spawn, whether the item is stolen or dropped, spawn conditions, etc. Original info from Helpoemer.
Greatsword - Tournesol:
Trade Goods, after selling off 3 Serpentarius, 3 Empyreal Soul and 3 Gem Steel
Serpentarius
[/*:m:8dba2][*]1 Soul of Thamasa
- 1 High Arcana[list:8dba2]
- Dropped by rare, non-hunt club NMs with canopic jar and stolen from espers. Adrammalech is probably your best bet if you choose to steal.[/*:m:8dba2]
- 1 Feystone[list:8dba2]
- Dropped/Stolen from Elementals. A good place to farm is the zone just south of the teleport crystal in Nabudis Deadlands. Just steal, kill, zone to crystal, zone north, zone southx2, if extremely foggy steal/kill again, otherwise zonex2 again, the elemental is only up during extreme fog.[/*:m:8dba2]
- Stolen from Crystalbugs[/*:m:8dba2]
[/*:m:8dba2][*]10 Arcana
- Dropped by Oversoul in Nabudis Necrohol[/*:m:8dba2]
- (Recommended way, oversouls suck) Can be stolen from Isteen who is a rare mob in Barhiem Passage. You must be part of the hunt club to make him spawn. He will spawn in the east-west bypass and zeviah span, and chance of spawning will increase by 2% for every 10 seconds your party is in those zones. Time is kept as a total so you can get 2 pops pretty easily with one timer. Do not kill this mob. [/*:m:8dba2]
[/*:m:8dba2][/list:u:8dba2]
- Canopus Jar makes normal mobs drop these. [/*:m:8dba2]
[/*:m:8dba2][*]4 Snake Skin
- Wildsnake in Giza Plains(Dry Season). Only one spawns that I know of, it is in the Toam Hills. I suggest stealing from it, killing it, and zone away twice to respawn the Wildsnake. Its a common steal and drop. [/*:m:8dba2]
[/*:m:8dba2][*]2 Serpent Eye[/*:m:8dba2][/list:u:8dba2]
- Basilisk in Feywood. They are found in the 2 areas right before Giruvegan. As always high chain = win.[/*:m:8dba2]
Empyreal Soul
- 1 High Arcana[list:8dba2]
- See above[/*:m:8dba2]
[/*:m:8dba2][*]1 Soul Powder
- Etem in Henne Mines(high lvl area, need at least 10 espers then speak to Geomancer in Jahara) [/*:m:8dba2]
- Stolen from Vorres in Necrohol. You must be part of the hunt club and must drag a Dark elemental south for a bit in Ivory Covenent. This is what I did, it wasn't TOO bad. Do not kill this mob. [/*:m:8dba2]
[/*:m:8dba2][*]2 Wargod's Band[/*:m:8dba2][/list:u:8dba2]
- Poached and Dropped (rare) from Leynir in Nabreus Deadland. Make sure you chain, I got decent rates @ chain level 1. Your results may vary.[/*:m:8dba2]
- You can steal a band from Victanir in Yellow sands portion of Nam-yensa sandsea. Will only spawn if you are part of the hunt club. Do not kill this mob. [/*:m:8dba2]
Gemsteel
- 1 Scarletite
[list:8dba2]- Dropped pretty commonly from Emeraltas in Nabreus Deadland[/*:m:8dba2]
- Perfect final fishing area reward [/*:m:8dba2]
[/*:m:8dba2][*]2 Damascus Steel
- Bune in Pharos At Ridorana. Seemed to be decent drop rate to me. I hunted the ones up the tower, not the basement ones. They're a bitch to get to but the farming itself was fast.[/*:m:8dba2]
[/*:m:8dba2][*]2 Hell-Gate Flame[/*:m:8dba2][/list:u:8dba2]
- Dropped by Cerberus in Feywood (rare). Highly suggested that you chain to chain level 4 as otherwise the drop rate is abysmal. Poaching also works and according to some the poach rate is much better.[/*:m:8dba2]
You can also get 1 of each (serp, gemsteel, soul) as a reward from Montblanc. Empyreal Soul for attaining the rank of High Guardian. Gemsteel for attaining 8 espers. Serpentarius for attaining all 13 espers. Serpentarius can be stolen from zodiark if you're crazy enough to run back to his area after every failed steal and make sure you kill him when you succeed.
For chaining I suggest making all your attack gambits "Attack = Party Leader's Target" or "Attack = (Whatever element the mob you're chaining is weak against) weak foe." Most of the places you can take enough hits to outrun any additional aggro you get.
Should be complete now, feel free to make corrections >_>
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