genshin should add special 1 day/week banners whenever it's a character's birthday. this way older units will get their turn every year and everyone knows for when to save up
hey have you heard of the co-op mmo boss raid style boss rush roguelite game called rabbit & steel, and did you know that it features rabbits, rabbits, and did i mention rabbits?
well would you like your own character in it, instead?
(with a cool splash art too?)
DM for info