If it helps you better understand the context of this, perhaps a little research on Legend of Zelda and its lore, story, and mechanics might help? Just a suggestion, you don't have to, but it might help
It also said no power play in the first part. This counts as power play. Also, again, if you know ANY Legend of Zelda Lore, Fierce Deity is a god that, although entombed in a mask, is still incredibly powerful. The wearer of the mask essentially becomes a puppet to this god.