this is a post is basically a sub category of wish list in general.

So what abilities you want to see the Eldar have?
Personally id like

Fleet of foot/feet (cant have eldar without speed)
Webway gates (temporary trasports to make movement easier)

I cant think of anything else at the moment so ill let others try

Id like to see orks being able 2 one shoot eldar

Edit: i ment 2 say shot. Sry

Some sort of passive skill which increases the chance of avoiding incoming attacks.

Grace of the Eldar would be a nice name for it but it's taken, unfortunately.

Nothing could be complete without an eldritch storm.

I also believe that in addition to certain aspect warriors basic abilities, (warpspider warp, swooping hawk jump,) that there should be additional combat and passive abilities to go along with each.

Dire Avenger
I was thinking he could switch between 3 "arts" (stances with special attributes) to enchance his/her combat abilities (but do have some drawbacks):
Art of Attack:
X% more damage, X% critical hit chance slight speed increase, attack speed increase take X% more damage, X% chance of enemies critting you
Art of Defence:
X% damage reduction, X% melee defence, crits do X% less damage, ability to block attacks in melee with appropriate weapon, Reduced speed, X% less damage dealt overal offensive ability reduced.
Art of Balance: Default stance, no advantages and no drawbacks

Warpspider:
Flank warp (need better name): Teleport in melee distance behind enemy target.
Slice and Dice: Teleport rapidly through a select area, rapidly slahing foes for X damage each slash (slashes equivelant to rank of ability and number of enemies in area.)
Phase (passive ability) 5% chance to evading enemy shots.

Will fix and add more when i get time.

love the dire avenger idea, fits perfectly for them. they're the jack of all trades aspect, the most common.
the warpspider shit is dope as well, i could imagine the slice and dice visual effects almost as a chain lightning, you jump from enemy to enemy, zigzag style, and end up behind them all. could increase damage with number of targets in line of sight as well.

banshees
the classic, banshee howl, slows by X%, lowers armor by X%, lasts 3-7 seconds, most useful right before you meet in melee.
dance of death, as long as it is activated your damage will slowly increase over time, but your damage resistance will do the opposite. could also offer chance to dodge, like phase.

Glad that you like it I also came up with other ideas for Fire Dragons and Swooping Hawks

Fire Dragons:
Birthing Flame (Passive): 20% resistance to flame and melta weapons.
Crack Shot (Must have Melta Gun equipped): Next shot against vehicles will be a critical hit, also causing tank shock.
Fuegan's Fury: Increases Firing Rate of all flame based weaponry, All hits cause DoT.
Engulfing Immolation (requires flamer): Within select area, it's engulfed in flames and everyone inside suffers from heat and slow debuff for as long as they're inside. (if ability is used into a bunker or enclosed building [from outside] the whole building is engulfed in flames, damaging it and everyone inside suffers sever fire damage.

Swooping Hawks:
Swooping Strike (grenades must be equipped): While still in flight, make a bombing run in selecting area. covering an area in ordnance.
Aspect of the Hawk (Passive): 10% movement speed, first strike in melee damage increased by 20%
Air Toss: Dive in from flight and strike the enemy, has a chance of launching the enemy in the air, furtring the damage he/she takes.

Warlocks:

Destructor: Frontal cone psychic damage.

Auras: 1 active at any time.
Embolden: Allies within y distance recieve xx% health regen.
Enhance: Allies within y distance have their attack speed increased by xx% and their crital % by y%.
Conceal: Allies within y distance increase their ranged defence by xx%.

Spiritseer: Dead allies ressurect x% faster. Allies have their ranged accuracy increased by x%

Thank you codex!

I want to be a bonesinger so i can fuck shit up with my.....flute. of bone.

My music is a pillar upon which whole newbs have been pwnt.