Gargoyles have a couple of major disadvantages over the other races, and no extra advantage except for the imbuer.
Which means that you probably want to plan for imbuing on your gargoyle template.
Since you have imbuing and you want to kill the monsters, think about the mysticism skill as a compliment for imbuing. This lets you use the rising colossus, which is a SERIOUSLY big beast. You can use the colossus without imbuing, but the non-imbuing version pales in comparison (yet is still better than any mage summon).
Now that you have mysticism on your template, you'll notice that some of the spells aren't very effective without evaluate intelligence, so throw that on as well.
And since you have EI, you probably want magery as well in order to maximize your spell damage types and outputs.
And with magery comes meditation.
So now you have imbuing, magery, mysticism, evaluate intelligence and meditation, leaving room for 1 or 2 more skills (depending on your level of specialization/max desired skills). You can do a whole lot with those skills depending on the type and amount of goodies you have laying about.
The problem with gargoyles now is that you either need 6 points of stamina regeneration on your armor or 60 focus (actually, my gargoyle character is doing all right with 40 focus with occasional stops to rest), so 60 focus may be a good choice with some points in another useful-at-less-than-max skill. Or you could just bypass the focus (if you have the SR items) and add in spellweaving to the mix.
Personally, I'd just go all the way with focus at the start and add in another skill later once you're used to the first five skills working in tandem. (most likely spellweaving for me)
