...circles with lines in particular patterns, and drawing runes in circles located along those lines, and writing "words of power" along the lines, AS a (usually rhyming for ease, but need not be) incantation is chanted or sung. In other words, static spellcasting.

Ah. No details to share, but it's ritual magic that involves placing spell components (both enchanted items and things, such as herbs or beast teeth or organs, that will be consumed by the spell) in particular patterns on a table, then drawing circles around them, joining those..