" Not all arrows hit their target, and not all bows are designed to make the arrow flew farther, but not all targets can evade, if you do it right... " - Pra'Eimus
If the Misshapen have Arfthar, Bura and Xasmir. Then the human have Suhym, Sufyn and Suhyl, the Dragons of Ashantar...
The PCs traveling along the road/path/trail begin to hear a low droning sound. As they approach they find their path obstructed by hundred of thousands of droning insects. Locusts swarm though the air, feasting on the grass and plants. Passage will be slowed, but the insects pose no threat to the party, aside from being crunchy and disgusting underfoot, climbing into pouches and eating exposed food goods.