Archer is a good "hybrid" because poison and water arrows are easy and cheap to craft.
Its great source of magic AOE surfaces and damage (Enrage skill from warfare tree, will buff this magic arrows damage even further)
And you don't need to sacrifice even 1% physical damage.
Also, any mage+necro build can use dagger+shield, with minimal stat investment and gain access to scoundrel/warfare CC abilities. Grasp of the starved + battle stomp works really great.
You can also make powerful necro build when you put all points in INT and 10 in warfare.
The main source of damage will be physical damage from necro spells, but you can still use other schools because of high int.
