Is the belt of wind (+1 initiative) supposed to be available for everyone from the start for designing units? As much as I would like to encourage early-game use of crystals, I feel it is out of place at 4 crystals per unit member for +1 Initiative, for an uncommon item.
If the item IS intended to be available from the start for unit designs, I feel that it should also be available in the city shops for heroes (which it currently is not).