Hussar
Legend
There's a point to remember here. The circles are permanent. As in forever. Any initial cost is subsumed in that. Your sailing ship lasts what, 50 years at the absolute outside? Probably far far less than that. But that single circle is forever. The king has one in the castle because five generations ago his ancestor made one.
Even if only a couple are made every generation, in the hundreds or thousands of years of history in many DND settings, they should be pretty common.
Even if only a couple are made every generation, in the hundreds or thousands of years of history in many DND settings, they should be pretty common.