My Eldar force is formed around 2-3 squads of guardians with added DAvengers and counterpunch of Harliquiens. Firedragons are a must. But banshees and scorpions are few in number and only good for one hit and then mowed down. at thier cost i would rather have another large unit of guardians or some vehicles. I am currently trying out reapers but havent made up my mind. The wraithguard are just to pricey even though i like them. and the wraithlord, is not as good buy as a Fprism or a falcon. Plus I think of the wraithlord as more of a theme unit. (just me). warwalkers are a must with a farseer to assist.