I had a thought about how if you combined a battle smiths steel defender and a beast wardens beast of the land into one creature you can make a beast servitor from Warhammer 40k and thought I should mention it.

Whats to say the Steel Defender wasn't that already?  It doesn't explicitly state the defender has to be non-organic in nature.   I believe its common practice to flavor them along the lines of golems common to whatever you setting is.  So if you're some place that uses flesh golems on the regular, a defender being a dead body (or not so dead body ) thats reanimated by machinery would fit right in.  

thanks, I tend to go over bored with the multi classing.