1850 Eldar Serpent/Wraithknight Spam

HQ: Farseer (Runes of Warding, Runes of Witnessing, Singing Spear, Shard of Anaris) 180
3 Warlocks: (3x Jetbike, 3x Singing Spear) 165

Troops: 10 Dire Avengers 130
Wave Serpent (Twin-Linked Scatter Laser, Shuriken Cannon, Holo-Fields) 145
10 Dire Avengers 130
Wave Serpent (Twin-linked Scatter Laser, Shuriken Cannon, Holo-Fields) 145
10 Dire Avengers 130
Wave Serpent (Twin-linked Scatter Laser, Shuriken Cannon, Holo-Fields) 145
10 Dire Avengers 130
Wave Serpent (Twin-linked Scatter Laser, Shuriken Cannon, Holo-Fields) 145
6 Windrider Jetbikes (2x Shuriken Cannon) 122

Heavy Support: Wraithknight (2 Star Cannons) 280

Total: 1847

As a tournament list it's fairly solid. I'd drop the Star Cannons; besides shooting at Terminators there's almost no occasion where the Star Cannons will be better than the Heavy Wraithcannons, and everything else in your army is already plenty capable of killing termies. I'd drop the Shard of Anaris too, it's a lot of points to make a Farseer only kind of a threat in melee. With the points you could buy another Warlock and some Jetbikes.

I decided to make some changes to add more Wave Serpents. Here's what I have now:

HQ: Farseer (Runes of Warding, Runes of Witnessing, Singing Spear, Mantle of the Laughing God, Jetbike) 185

Troops: 5 Dire Avengers 65
Wave Serpent (Twin-linked Scatter Laser, Shuriken Cannon, Holo-Fields) 145
5 Dire Avengers 65
Wave Serpent (Twin-linked Scatter Laser, Shuriken Cannon, Holo-Fields) 145
5 Dire Avengers 65
Wave Serpent (Twin-linked Scatter Laser, Shuriken Cannon, Holo-Fields) 145
5 Dire Avengers 65
Wave Serpent (Twin-linked Scatter Laser, Shuriken Cannon, Holo-Fields) 145
5 Dire Avengers 65
Wave Serpent (Twin-linked Scatter Laser, Shuriken Cannon, Holo-Fields) 145
5 Dire Avengers 65
Wave Serpent (Twin-linked Scatter Laser, Shuriken Cannon, Holo-Fields) 145
9 Windrider Jetbikes (1x Shuriken Cannon) 163

Heavy Support: Wraithknight 240

Total: 1848

Isn't that 7 troops?

Yes, I made a mistake in the OP. Here's the actual list:

HQ: Farseer (Runes of Warding, Runes of Witnessing, Singing Spear, Mantle of the Laughing God, Jetbike) 185

Troops: 5 Dire Avengers 65
Wave Serpent (Twin-linked Scatter Laser, Shuriken Cannon, Holo-Fields) 145
5 Dire Avengers 65
Wave Serpent (Twin-linked Scatter Laser, Shuriken Cannon, Holo-Fields) 145
5 Dire Avengers 65
Wave Serpent (Twin-linked Scatter Laser, Shuriken Cannon, Holo-Fields) 145
5 Dire Avengers 65
Wave Serpent (Twin-linked Scatter Laser, Shuriken Cannon, Holo-Fields) 145
9 Windrider Jetbikes (1x Shuriken Cannon) 163

Elites: 5 Fire Dragons 110
Wave Serpent (Twin-linked Scatter Laser, Shuriken Cannon, Holo-Fields) 145

Fast Attack: Crimson Hunter 160

Heavy Support: Wraithknight 240

Ive yet to use a Crimson Hunter where it did anything but die horribly the turn it came in. The FW flier is a much better one if FW is allowed at your tournies (it might be cheaper too).