Taking of the Necropolis [COMPLETE EDITION]

2Captain, with a Castle and non-grand archers, you essentially get the same result as with a Swamp, but you won't be able to use a Griffin to control undead units as effectively as with a Serpent. I think it's impossible to take it with acceptable losses using only native troops. As for the Tower, I'd like to see how that works. And does a Gremlin detach as a single unit, or is it lost from the main stack?