Lodul

Useful Info

Lodul the Thundrous is a unique ogre with the same Call Down Lightning of an ironbound thunderhulk, albeit not as strong. He spawns with a pack of ogres and a fair sum of gold.

See ironbound thunderhulk, except that he lacks blink, making it easier to get up past his effective range.
You aren't likely to have a source of antimagic at this point in the game, and both Silence and the phial of floods don't work against mechanical magic. A potion of resistance at least can lower the damage.
His willpower matches that of a two-headed ogre. A wand of polymorph most likely will create a non-threatening monster with his 6 HD.