UPDATED!
Since the biggest comment was that it wasn't quite enough, I made it just a little more fragile but added a significant new active ability.
(BTW, the 'vulnerability' is a Passive ability, so it's not affected by Lobo/LS/Butterfly.)
Kraken|Leviathan now dies
instantly unless underwater -- making it unusable as a "direct damage" spells -- but now provides hardcore complementary power to Flooding|Inundation, as it can kill
creatures (like you might expect from the most dangerous predator of the seas).
Better now?