So an art issue that a few grognards have raised directly or indirectly – why does Orlanth have multiple arms?
The Orlanthi depict Orlanth as having four arms so that they might display the breadth of his powers – Orlanth is armed with a sword, the thunderbolt, a shield, and a dragon head or axe, or even sometimes the lightning spear. He is even sometimes depicted as having three or four heads – each depicting an aspect of him (Adventurous, Thunderous, Rex, and Lightbringer). This is a visual way of showing Orlanth’s remarkable breadth of abilities and aspects – greater than other gods, and clearly greater than any mortal, limited by a mere two hands.