My "standard unlocking build" are alchemists.
Hmm....I don't know that I've ever even tried a Yeek Alchemist. Suppose it couldn't hurt. I tend to make my alchemists all about the golems and ditch bombs and gemworking for the most part.
Golems fall off pretty quickly, seeing as they only have 2 hands, a body, and 2 gem slots, minimal stat gains per level, and almost no skills. There are tricks to making them more potent, such as scumming escorts for certain ones, not sure which would be best, then giving the reward to the golem. Something that heals them would be useful, I think. But, yeah. A golem later on isn't much more useful then a meatshield to hide behind.
Currently I'm running a Cornac Alchemist focusing on the Heat and Bombs trees. Surprisingly, Heat + Smoke Bomb is fairly amazing. Hit the heaviest one with heat, then drop a smoke bomb on the group to hit EVERYTHING with a 400-500 damage debuff. And, if you don't need smoke bomb, you can save it for a very useful LoS remover.
Also, I got the best stick+wand combo ever. Staff gives +3 ward talent level, and the wand gives +1. The wand has a bunch of useful assorted ward elements, and the staff just one. But, changing the element on the staff changes the element it gives wards for. So, hello 5+ cold wards for Daikara, or whatever I need. Go in, analyze a target's talents, gem portal out if I must, then just set my staff up to absorb it all. That + Rune of Reflection makes me nigh immortal.
Edit: And so ends Kih the Cornac alchemist. Opened a vault door in Dreadfall. 3 Major demons, no corners to duck around, no way to gem portal out of LoS. Pop rune of reflection, throw an acid bomb at them to try to blind them. Next turn, get teleported PAST them onto a lava floor, golem is dead, I'm at 80 life. Next turn, dead. Was last life, but oh look, Blood of life doesn't give you an extra life. Use that, appear in same spot, drop dead instantly.
Edit2: I just got a cloak. Fairly weak. Except, it has telepathy-Humanoid/orc. Is this any good?