Cleon
Legend
Probably Power Attack and Cleave.
It gets 80 skill ranks. Max out Climb, Intimidate, Jump, Listen, Spot, Swim, Tumble, and
Use Magic Device? I'd be willing to swap some of those out, especially Tumble.
Dragons have 6+Int skills, not 8+Int, giving it 60 SPs or 6 maxed-out skills.
I'm not fond of Tumble or Use Magic Device for it, but of those two I prefer Tumble as there's nothing about them using magic items in the original text.
Nor would I bother putting much in Swim since we've given it a Swim speed.
Apart from that, I'll suggest some ranks in Knowledge (dungeoneering), or how about Escape Artist, for wriggling through the tight confines of the underworld?