Nova nick wrote:When necrons come back to life they have to join a squad of the same type within 6". Does this mean that a unit can have more than its allowed? I.e. a wraith joins a squad of three wraiths to make it four.
Squad limits are for choosing them for your army list to begin with. There is no rule that says that a unit can't be increased past its original cap if some rule allows extra models to join the unit.
So yes,
WBB can result in units increased past their original maximum size.
Also, I'm unclear on the whole ignore terrain thing for wraiths and C'tan. If they land on imppassible terrain do you put them on top of the terrain? What if there is no suface for them to stay on?
Aside from being able to move through (but not end their move inside) terrain, they move in the same manner as jetbikes, so can only end their move on top of terrain if it's physically possible to place them there.
Nova nick wrote:What do you do when you have a monolith on imppassible terrain and you teleport non-wraiths to it?
If they are unable to disembark legally, they would be destroyed.
Also, when they get back up, do they pop up right next to the squad or do they have to move within coherency?
They are placed in coherency, as per the
WBB rule.