I would like the "autumn leaves" recall with... green leaves, blossoms, book pages, snowflakes, shadows... name it. It has lots of potential And it is beautiful and not too flashy.

I'd like a dwemer inspired one... have something open up in the ground, like the steam vent the sphere from the Engine Guardian monster set uses.

Have that open up in front of the player, they drop down into it, and it disappears back under ground.

The animation for the vent is already in game, just add the played stepping into it and we're good.