Wave Serpent
The Wave Serpent is the Eldar's dedicated troop transport, an anti-grav skimmer that flies through the battlefield, blasting away with a twin linked turret weapon while rushing to get your troops right into the heart of the army.
Like all Eldar vehicles there is not much difference between it and say the Falcon or the Fire Prism besides some variation in weapons. This is basically the Eldar are shameless cut-corner-ers who won't fix what ain't broken. That Or Games Workshop can't be bothered to produce multiple different molds and uses the same one as the staple Eldar one.
It's currently regarded as a massive chunk of cheese on the table top as it dumps out a massive amount of accurate, long ranged mid-strength fire while also being nearly impossible to kill and extremely spammable. How much firepower? With the super-popular Scatter-laser serpent, you get six twinlinked S6 shots that twinlink any other shots fired by the model if one hits, S6 shots that can hit from across the board, then you can stuff a shuriken cannon on the bottom foor just a bit more dakka. Then you can fire the Serpent shield for 1d6+1 S7 shots that ignore cover with the absolutely ridiculous range of 60 inches. Anything that wants to kill these will be faced with an AV12 vehicle that can get a 4+ cover save from just moving a milimeter and downgrade penetrating hits into glances on a 2+ if it hasn't fired it's shield. And it will probably be out of range of most of your rapid hull point stripping options anyway.
You can field six of these and they only cost a bit more than a hundred points and get to move like skimmers while carrying ten troops to steal objectives at the end of the game after gutting your army under a storm of fire that is usually only thrown about by the Guard, Orks, dakka banner Dark Angels, or Tyranids. A storm of firepower usually thrown at much shorter range, with less accuracy, from less durable and mobile platforms.
This is usually enough firepower to pretty much wipe out whole scoring units every turn before sweeping in during the last turn to take the objectives.
Fucking, hell.