Wolfe created the spell in the air for everyone to see, and then waved his free hand and the circle appeared on the fan.
"Now, as you can see, I created the same spell circle on the fan, carved into the shell. If you fill that with a metallic substance, or any other magic conducting material, like monster blood, it will solidify the base of the spell, and keep it in the form you intended.
That is why I recommended metallic paint. It is the easiest medium to work with when creating magical runes, and from a pen, anyone with good handwriting can firmly settle it onto an item."
Wolfe paused and used Earth magic to fill the spell circle with silver.
"Now, I cast the actual stun spell, and you can see how it activates the spell circle that I drew? It's perfectly natural, and like a circle drawn on the floor, you don't need additional focus items to get it to cast properly.