Ok, so ive been thinking a bit, and decided to make YET ANOTHER BASI THREAD! (oh the horror)
So, my idea is to change the basilisk so that it is only able to stick to walls, not move while they do so, in return they get a pounce ability without the goon pounce damage.
That way you could make the basilisk a more ambushy kind of alien like i feel it should be.
I tried pounce combined with wallwalking on a server, (i think it was benmachine's) where there was a mod so EVERYTHING had the wallwalking ability.
And wallwalking combined with pounce worked really well imo.
I dont think it would unbalance the game, only make the basilisk more something unique and something for itself.