Purchasing Valkyrie items from Kilusha requires Ichor. Players who are not working on this quest can buy the Valkyrie items from Kilusha and sell them on the AH for profit.
Completing Wing III will earn you 1920 Ichor. Entry into Odin's Chamber (reward 2880 Ichor) or Odin's Chamber II (reward 3600 Ichor) requires all players to own one feather from each of the three Wings.
By farming Wing III, you will obtain 100,000 Ichor in 52 runs.
Nyzul Isle Uncharted Area Survey is not a good source for farming tokens for several reasons. Each floor is far more difficult to complete, being level 99 content, and you only receive 90 tokens per floor cleared (not the number of the floor you finish at). For example, if you use "Jump ??? floors" each time and clear 14 floors prior to completion, you will receive 1,260 tokens.
Token yield for Nyzul Isle Investigation is far better. Base token yield is 200 per floor completed, plus 10 every five floors; e.g. floors 1-5 yield 5*200, floors 6-10 yield 5*210, floors 96-100 yield 5*390. You will receive 100% reward with 1-3 party members, 90% for 4, 80% for 5, and 70% for 6. The assault leader will earn an extra 10%. To start on higher floors requires a payment of Tokens, but in a party that takes turns paying, this cost is not significant.
A party familiar with Nyzul Isle can comfortably clear 10 floors. An elite group of 4 players can clear up to 25 floors.
Parties usually follow this rule: Exit assault after the 5-minute warning, unless the next floor is a boss floor (20, 40, 60, 80, 100).
As of the May 14, 2015 update, Same Time lamps will stay active for five minutes rather than 30 seconds, making such floors easier to clear when solo.
As token yield is highly dependent on speed and party size, the timeframe for this objective is variable. A serious party can expect to earn 3,000-7,000 tokens per run, reaching 150,000 tokens in 21-50 runs.
Successfully record Assault missions by trading the appropriate item to the Rune of Release after clearing the mission.
Checking / Looking at a journal in your Item List will display a line of ten dashes (-) and stars (*) indicating which assaults have been completed: <---------->
The leftmost dash represents the First Lieutenant assault; the rightmost dash represents the Private Second Class assault. When an assault has been successfully recorded, its position in the line will become a star.
Once a journal has been completed, you may trade it to Paparoon for safekeeping.
Silver Sea Remnants contains four Cotton Coin Purse-carrying NMs along one path, as well as 24 monsters that each drop 1 Alexandrite, and the final boss which may (10% chance) drop a Linen Coin Purse. You can expect to earn about 82 Alexandrite per run, reaching 30,000 Alexandrite in 366 runs.
You must have sufficient DPS to kill Armored Chariot within 3 minutes to spawn both Khimairas. Failure to do so only allows you to spawn the first Khimaira. Recommended jobs include BLU, RDM, PUP, DRG, SMN.
It is also possible to solo Bhaflau Remnants II with SMN using Ifrit and Warcry or THF/DNC (you can try other jobs of course, but this is based on real farmings). Unlock everything in floor 1 and 2. From 3rd floor, all the Archaic Gears and Archaic Rampart drop 1 Alexandrite 100% drop and another one <100% drop. Archaic Gear can also drop Alexandrite (but difficult without Treasure Hunter). You must clear both final rooms in 3th floor before opening the last door to access 4th floor. Just travel from one side to another one and clear all in your path. If you take the west path, in 4th floor you will find two Archaic Gears with 100% at least. In the center room, kill the three Archaic Gears before 2 minutes are gone with Apogee if using SMN or storing TP before. At this point you will have 35-38 Alexandrite 100% dropped, plus lucky drops (all NMs in all floors have a chance to drop a Cotton Coin Purse if you don't care to spend some extra time, plus second alexandrites ramparts, etc). If you don't feel lucky or running out of time, just make Cerberus pop and go straight to the 5th floor. You don't need to kill Cerberus in order to pop Orthrus Seether, which will drop 100% aLinen Coin Purse. At the end you will have ~40 Alexandrite + Linen 100% dropped. This way you can easily farm 100-150 Alexandrite, depending of your daily luck.
Alexandrite can be purchased from other players' Bazaars. Prices vary by server, generally between 5,000 and 10,000 gil per stone.
Honorary officer Paparoon has been brought on to see that you carry out your imperial orders. Alexandrite, Wyrmseeker Areuhat, assault memoires, holy relics... A multitude of paths lay open before you.
SPOILER WARNING: Click here for additional details about this story line.