Maer, Deity of Change

Maer, Aquim, Tenera, or The Nameful Deity, is the deity of change, and the god of water and the sea.
Water genasi with sparkling eyes, consistently changing body, gender and personality, true to their gimmick
Brotherhood of Dalai and Bidisian Conglomerate (countries) are big fans
Usually worshipped by people who want to see change, or who have embraced a big change in their life.
- But also, this is the type of deity that people would rather not be personally influenced by, since things usually go askew if they get involved.
There's altars to them underwater, in lakes too. A couple above ground, specifically in Brotherhood of Dalai and Bidisian Conglomerate
Maer offers an afterlife to those who underwent deep change or deeply changed the world around them.
These souls are usually repurposed to being river/water spirits of various kinds
Has been the reason behind many minor deities (has lots of children)
Holy symbol tends to change often, but usually tends to be blue and sparkly. Or water-themed, like a droplet or smth.