“If He is a creature of course He serves with all the rest, for ‘all things,’ it is said ‘are thy servants,’ but if He is above Creation, then He shares in royalty.”
Basil of Caesarea, On the Holy Spirit 20.51 (trans. Blomfield Jackson, NPNF² 8, public domain).public domain
How it works in the game: the move Shares in Royalty
In the gameAnswers "he is not a slave, not a master, but free" directly: a creature serves like everything else does. Only what stands above creation can share its rule.
Learned byOn the Holy Spirit (Lv 1)
×3Against the Spirit’s Deitya book · why?
Basil answered this exact line, in these words, at the council that settled it.