Sounds like fun! Let's get the basics going...
"Similar" creatures:
Ice Golem: Str 27, Dex 9, Con -, Int -, Wis 11, Cha 1
Immoth: Str 18, Dex 16, Con 19, Int 14, Wis 13, Cha 21
Chraal: Str 21, Dex 11, Con 20, Int 9, Wis 10, Cha 14
Large Ice Paraelemental: Str 14, Dex 21, Con 16, Int 6, Wis 11, Cha 11
In and odd twist, Cha was listed as 17, but no Int was given.