Not a bad list at all, I would peronally change a few things though.
1- Fire Prisms in my opinion aren't really worth their points, you could happily drop this and find something more effective elsewhere.
2- If taking wraithguard w/ D-Scythes, then I would highly recommend a sppiritseer and using the Iyanden detachment rules, then taking both primaris powers: Psychic Scream and Voices of Twilight. This gives the unit a much greater effective range. As a bonus this can be used to make both the WG and their WS objective secured, which is brilliant in Maelstrom missions.
3- 8 Fire Dragons is probably overkill, you can save a few points by trimming down the squad size.
4- By splitting up the Jetbikes into 3 individual squads you gain 3 very fast moving objective secured units which is great for getting VP's in maelstrom, and also for denying VP's for your opponent.
5- I am a huge fan of taking a farseer with either the Dark Reaper or the D-Cannons, roll on divination and you can get some great supporting powered: ignore cover, 4+ invun, reroll to hit etc.
6- Taking the CH as an exarch is a must imo, you can guarantee the day you dont pay the extra xpts, you will roll 2's to hit.
When you say the warlord was locked, I was unsure whether this was just the powers or wargear too. If wargear is locked then you can take the xpts from the mantle and pop it elsewhere.
This should make an army which has strong psychic support and lots of objective secured. If you are set on taking the fire prism, you could drop the 2nd farseer, exarch upgrade on the CH and the singing spear from the warlord.
This would look something like:
Iyanden Detachment - 1401HQ - 275Farseer, Eldar Jetbike, Singing Spear, Spirit Stone of Anath'lan, Mantle of the Laughing God, Powers (xpts) Invisibility, Fortune, Vortex. 205pts
Spiritseer. 70pts
Troops - 67110 Guardians w/ Scatter Laser or Starcannon. 110pts
-> Dedicated Transport Wave Serpent w/ Holo fields, Shuriken Cannon and Scatter Laser. 145pts
5 Wraithguard w/ D-Scythes. 210pts
-> Dedicated Transport Wave Serpent w/ Holo fields, Shuriken Cannon and Scatter Laser. 145pts
3 Windrider Jetbikes, Shuriken Cannon. 61pts
Elites - 2755 Fire dragons, Exarch w/ Fast Shot. 130pts
-> Dedicated Transport Wave Serpent w/ Holo fields, Shuriken Cannon and Scatter Laser. 145pts
Fast Attack - 180Crimson Hunter Exarch w/Lances. 180pts
2nd Detachment - 598HQ - 100Farseer. 100pts
Troops - 1215 Rangers. 60pts
3 Windrider Jetbikes, Shuriken Cannon. 61pts
Heavy Support - 3775 Dark Reapers inc Exarch w/ Fast Shot, Reaper Launcher. All with Starshot missiles. 212pts
Vaults Wrath Support Battery: 3 D-Cannons. 165pts
Hope this was helpful. Do let us know how the game goes.
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