Clash! => Forge! Conversion (Patreon)

I (hastily) threw together a converter for Clash! collection to Forge! collection.

If you were not a subscriber and your data was stored locally, just Export the data in Clash in the settings tab.

Then go into Forge, scroll to the bottom of the settings page and import the filethere.

If you're a subscriber, you can find the migration button on the battle-system.com website.