His people are called the Loxodon.  In general, they are very close to nature and the healing arts.  Peaceful and slow to anger.  You can find them tending the greenbelts around Sigil, usually under the Selesnya Conclave.  Gentle giants.

The ones that ain't you don't want to run into in a dark alley.  

I have to figure out how my WF Monk is going to feel about the extreme robo brains of Modrons and Mechanus in general. Warforged, while still constructs, tends to actually be individuals with their own agency and being a monk on top adds a metaphysical layer to the whole deal that will be fun to explore.