Replacing Hydras with Manticores.

Firstly, a purple Manticore seems a bit strange, IMHO.
Secondly, almost all factions in H5 had exceptions in their color schemes, for example, poisonous wyverns.
Thirdly, it's a rather original decision to use a Lamassu, as it hasn't been done in other similar mods yet.

But if it is a Lamassu, I would still suggest reducing the intensity of the green color. Look at the Lamassu in H6 and H7.