Welcome to Librarium Online!
This is for a league at my hobby center. We play a modified scenario with 5 objectives per game gaining each turn VP and adding at the end VP from army and no special characters. So the list is a little tuned for some objective grabbing for several turns not just last turn. I have 13 other opponents with all kind of races except Daemons.
Avatar 155 pct
Farseer 83 pct
rangers 5 120 pct
Guardians 10 100pct
Dire avengers 7 241 pct
twin missile launcher
Guardians 10 113pct
swooping hawks 5 147pct
warp spider 5 127pct
howling banshees 9 306pct
twin missile launcher
striking scorpions 9 196 pct
dark reapers 4 182pct
fire prism 115 pct x2
First game against a Kopta ork list (not a very effective list tbh) i got a good victory.
The only anti tank that you have that goes further than 12" is the fire prisms and one shot of guardian. In a 2k game, you have to have something more than that, cause that's only two shots. If you go against a mechanized army you could be in some very real trouble.
Have to say the rules don't seem to favor the eldars fragile units but thats a different topic. You do have a couple of EMLs and the fireprisms for AT and you can chuck the hawks at a lith or raider. It does seem a bit light for me but if it gets the job done for you than I have nothing to say on it. The one thing that really seems to bug me is the small warp spider squad, with only 5 models it seems like they would get shot off the table quickly. Maybe drop them to get a wave serpent for your storm guardians and a couple of special weapons for them. They could act as a fairly fast harrassing unit or be a much safer scoring unit because they can sit in the tank.
As a rule, the serpent for the guardians will be better than my 5 spider unit, but the spiders i am using as a support unit for my cc units, including when needed as a sacrifice unit that simply make a enemy dangerous cc unit with some heroes inside to split between my scorpios, banshee and the sacrifice spiders....
i had used the 5 man spider unit as a delay unit against flamers, shock unit against command squads of IG, support unit against bloodcrushers or necron lords.
And yes if i do not use them wisely i fail badly with them.
@mcgee - i also have 2 TL missile launchers...but surprisingly, i killed more tanks in my training games before the start of the league with my scorps and my storm guardians in CC