Clan Titan

Anyone knows what this does?

Are there any ohters?

(I saw people talk about hotel and guild)

while you have the weapon equiped, you are treated as if you have the clan power Strong, or Mystic.

All of the clan powers and what they do can be found here:
http://wild.ffiends.com/DCourt/Ability.stm

And here I was hoping for Critical Hits, double damage, or some sleep spell. :p

I get the idea now, thank you for your fast answer.