Icarax is stated to have Rotating Shadow Blades and a shield in the Makuta's Guide. Now, in the set he has a dualblade and a sawblade.
It has been assumed previously that the sawblade is the Rotating Shadow Blades because, well, the spin/rotate and Tahu's Rotating Fire Blades is very similar.
On the other hand, he is referred to as having a shield, the sword doesn't make much of a shield, and, Brutaka's weapon, which is similar to Icarax's sword, is called the Rotating Blades due to how Brutaka uses them. On the other hand it could just be that it's a shield with the Rotating Shadow Blades on them...
Yeah, working of pure assumption is very inconclusive on the matter, so, what say you?