I also think that there is a lot of points in the wave serpent, i also run a 500 combat patrol list which has slightly different rules to yourself but similar in some respects. Outflanking war walkers with scatter lasers can make a real mess of almost any vehicle as with outflank you stand a reasonable chance of hitting the rear armour. However 3, all with scatter lasers comes to 180pts.
If you drop the BL down to a ML, then drop the pathfinders it would be possible to crowbar those in. However if you don't fancy the glass hammers of the walkers, a wraithlord would work a treat (usually I wouldn't advise it as unfair but a libby dread is just as bad lol).
If you don't fancy running any of the walkers which I sense may be the case *yoda sense is tingling*, then try a small switch of giving the exarch the doublecats as a wep, as this will maximize bladestorm potential. Possibly try free some points up by cutting 2 rangers, maybe some upgrades and get a small naked 5 man dragon squad, this would give that libby dread and any other vehicle something to think about, leaving your bladestorming avengers to hose some infantry. However it may leave your units a touch small.
Either way, let us know how you get on and all the best fellow pointy ear
Panzer
If you drop the BL down to a ML, then drop the pathfinders it would be possible to crowbar those in. However if you don't fancy the glass hammers of the walkers, a wraithlord would work a treat (usually I wouldn't advise it as unfair but a libby dread is just as bad lol).
If you don't fancy running any of the walkers which I sense may be the case *yoda sense is tingling*, then try a small switch of giving the exarch the doublecats as a wep, as this will maximize bladestorm potential. Possibly try free some points up by cutting 2 rangers, maybe some upgrades and get a small naked 5 man dragon squad, this would give that libby dread and any other vehicle something to think about, leaving your bladestorming avengers to hose some infantry. However it may leave your units a touch small.
Either way, let us know how you get on and all the best fellow pointy ear
Panzer