cloud savegame isn't available

The first part is also available for 360, you could upload your savegames to the cloud

I am pretty sure, as with all Xbox games, your game save data is stored on the cloud connected to your Microsoft Xbox account.

Either what you say is true and my game, in this case, 'Slay the spire' isn't syncing, as my savegame is not available. Or what you say isn't the case and not all games have cloud saves

Savegames should still be available since the Xbox One automatically saves a copy onto the cloud

If the game you deleted was a Xbox One game, then your savegame data should be safely stored online in the Xbox Cloud, unless you chose to delete the savegame data from "all" consoles.

If you only deleted the local savegame storage, simply launch the game (after installing it, if necessary), and then let the console synchronize your savegame from the cloud.

If there is a conflict about the local savegame and cloud savegame, make sure to choose the cloud version in the confirmation dialogue.

Hi,

the last time I did this, it was like this:

I deleted the savegame only on the console. When I started the game, the savegame was downloaded automatically.
For example, if there are differences between Local and Cloud savegames, you will be asked which one you want to use.

But it's been a while since I did it. But as long as you delete your score only locally it is still available in the cloud.

more Infos you can find here:

https://support.xbox.com/games/game-setup/game-saves-in-the-cloud-faq

Edit:

this is the correct link for xbox one:

https://support.xbox.com/games/game-setup/cloud-game-saves-faq