If you're using a plain damage weapon then strength is good but if you're using a weapon or weapons with magic damage then put points into intelligence. That is what raises your magic damage.
Get a demon if you have a point to spend as well, he helps greatly. Far more then your creature that just wanders off and pees on everything and does not help you at all. Your necromantic creature is good for in caves and other tight areas to use as a block as they can't get by as he is peeing but in the open he is pretty much useless because of his constant peeing and scratching at the ground. Plus if you're running and meet up with something he is way slower then you and will not even get there in time to do anything for you. They should have made the leg stats of him have to do with his speed as he is slower then molasses on a January morning.
Good or maybe bad thing is once you find the combination to get thru the groups of goblins in the fjords you'll level fast. Way to fast if you ask me as they can not even damage me now even standing still in my bra and panties. They just whack away for a big old "0" damage.
