Alright, I've been trying for ages to find a Dusk Stone. I was stupid enough not to buy one in the main story when I found the traveling merchant, since I didn't know I was going to be using a Chandelure. But now that I'm going to be using a Chandelure, it's like the game knows that I want one and is refusing to supply me with a Dusk Stone.
Now, I think I know what a typical answer would be like; "Wait for a traveling merchant" or "Level up your shops". That's what I've been doing. I've been waiting for about 4 in-game years in Hideyoshi's episode with max level shops in Yaksha and Violight, but I cannot get a Dusk Stone.
Is there something I'm doing wrong here, or am I just extremely unlucky?