“Do you trust me? Do you feel I can get you through this night?”
They looked unsure. Slowly, each nodded. One even spoke, “I believe you can get me through this night.”
“Good. I believe we can reach the morning light. Now here is what we need to do…...”
Basq doesn't exist. He occupies a point in space--a single X,Y,Z point in the Cartesian plane, but he's not made of anything. People looking at him see whatever they want to see. Or what he wants you to see. Usually a mix. Just the same, he cannot be hurt swords or arrows. Only things that deal damage to an area (fireballs, gases) can damage him. Or weapons that can cut through an infinitely small point.