Sprites.

For use in some alternative universe, possibly Erth or Yrth. Whichever one has magic and things as commonplace.

Sprites are pretty much just like faeries, they're just elementally themed. The most often seen are seasonal sprites. These are the boldest and most common, as they are among the strongest.
While humans have very effectively harnessed fire, water, electricity, light, "earth", and even wind, they can't do much at all about the seasons. And they can't really harness them. There's no source of energy to be had, and even if there was, there's no way to strap a turbine on a season and pump it into wires. It's not a piece of nature, it's an intangible force of it.
ANYWAY. The harnessing of other elements over time is what has badly weakened most other sprites. They only survive now in the furthest reaches of the wild, where they get up to many wild, wild things. Every now and then, when one of them gets a decent foothold, they like to come back and wreak havoc, just for a little revenge.
Seasonal sprites, on the other hand, are going strong, possibly even stronger since humans go so far as to encourage certain seasons. Everyone loves summer for being summer, they love spring for preluding summer, they love autumn for the colours, and they love winter because of CHRISTMAS.
And Saturnalia too I'm sure but mostly CHRISTMAS.

For each season, there is of course a master being, a creature that is Summer, Spring, Autumn, and Winter incarnate. And they are called simply by their incarnations--Summer, Spring, Autumn, and Winter.
Incarnations have sprites for the same reason Santa Claus has elves, to put it in very rudimentary terms. It's a big planet, and one incarnation does not have time to get it all done if they want to be on time. Incarnations cover big areas, large swathes of nature, while their sprites handles the individual details. Sprites are, believe it or not, most often seen in cities and towns, where there's still nature and other forms of life that express seasons, but not huge tracts of it. Sprites handle the sidewalk trees, the parks, the window boxes, all that good stuff. One incarnation can't pass over a whole city and express its power over it, otherwise you get spillovers on things that AREN'T nature. Autumn leaves clogging up toilets, cars sprouting vines and suitcases putting down roots--overall it would be very messy and probably even counterproductive.
Romances between humans and seasonal sprites aren't uncommon, but they don't usually work out. Only autumn and spring romances usually are fine, because those are the mildest seasons--spring is warm and wet, autumn is cool and breezy. They don't have the harsh temperatures of summer and winter, which, up close and personal, embodied and concentrated in one humanoid form, can kill a human being.

Mostly I feel the need to blog about these because of the story ideas I get off them for this world. Like an autumn sprite that pauses on a windowsill to look in on a ballet class at a beautiful ballet dancer, or a winter spirit attracted to a professional ice skater practicing late, or a romance between a winter sprite and a halfling autumn sprite, or an autumn sprite that saves the life of a reclusive cabin-dweller in the dead of winter, or a spring sprite who lives in an apartment where one of her neighbors suspects her(sprites that take care of cities don human identities when they're "off work", since sprites can't travel large distances without the master incarnation's help, and most don't want to bother expending the stress and energy on migrating every year. They aren't necessarily trying their hardest to fit in, but it can be more inconvenient when they don't pass for human at the least--humans can get obnoxious,rude, uncomfortably curious, or downright fetishist.)
I think I maybe want to draw some of em.