You can share your idea at the "custom variants" club and test it.
Could I suggest a new variant?

Someone has already made a more complete version of the same variant. To know more read Fusion Chess.

I can’t find fairy chess on chess.com, is it on the website or am I dreaming?
It is.

You can share your idea at the "custom variants" club and test it.
We have limitations to what we can test and what we can't. This isn't a plausible variant not because we think it's a bad idea or anything like that but because we simply can't test it at all (there's no code for "merging pieces")

I can’t find fairy chess on chess.com, is it on the website or am I dreaming?
chess.com/variants has tons of fairy piece variants
just click more then search "fairy"

You did not explain the variants merge and what powers. This sounds like some wacky and stupid variant.

You did not explain the variants merge and what powers. This sounds like some wacky and stupid variant.
woah buddy there's no need to call it stupid

I can’t find fairy chess on chess.com, is it on the website or am I dreaming?
chess.com/variants has tons of fairy piece variants
just click more then search "fairy"
Thanks so much and nice profile pic, I love that game!

Please kindly check sub-forum https://www.chess.com/clubs/forum/view/suggestion-add-more-variants in which I've just now posted a new suggestion. Many thanks

You did not explain the variants merge and what powers. This sounds like some wacky and stupid variant.
https://www.youtube.com/watch?v=oVnTngfYwY8
Watch it for more information.
CHESS+
This is normal chess but with one big difference.You can ,in this variant , MERGE PIECES' POWERS and even SEPARATE THEM whenever you like . Because of this, amazons , chancellors and hawks pieces exist in this variant.There are a few exceptions . To know more , watch -Chess+