Specifically augments. The item restrictions do not show up on the alla clone. Some examples are: donor augs (several), claw of the arbiter or Dark Blood Drinker's Fang (2h only), claw of the huntress (bow only).
Can avoid some confusion for most people if it was added. Had a new guild mate who did the research (encouraged) to find some damage augs and found claw of the arbiter aug for his type 8 slot using the alla search. Problem was that he was a rogue. Lucky for him he announced in guild chat before heading over to the Final Arbiter and was saved the agony of finding out it was a 2H only item if it had dropped. Time + heartbreak saved. This can be avoided if it (item restriction) was displayed on the Alla Clone.
thx