So we have a huge sea monster - and we don't know if it's intelligent or cunning yet.
If it's intelligent we could effect it with mentem spells, without a size modifier as one mind is the base size regardless of the size of the individual.
But if it's cunning we would need to use animal spells - and this would require a substantial size modifier to effect the beast. Am I correct on this?
God bless,
james
<edit poor spelling of "mentum" in post title>