Its abilities are primarily powered through a point mechanic, kind of like Favor for Dungeons & Delvers clerics, just more to go around: you spend points to use various powers and miracles, and whenever the sun rises you regain the points you spent.)
(Like, I have this sun priest Dungeon World class that I apparently almost finished and forgot about years ago. For example, something associated with the sun regaining the use of a sun-related ability when the sun rises or sets, whichever makes sense.
Right away I have to note that I'm not a fan of the x times per day mechanic, unless it makes sense in-game. In 2nd Edition Dungeons & Dragons, banshees were basically ghosts that could once per day try to kill you with a scream.
