This line in DeckBuilderMod.cs causes non-vanilla cards to not be loaded into the card pool, making it impossible to use with custom cards and throwing An exception when CardLoader.GetCardByName is called.
This was a workaround for an older version of API, where it would require that allData be null so cards could load. If you want to make a pull request I will merge
ScriptableObjectLoader<CardInfo>.allData = null;
This line in DeckBuilderMod.cs causes non-vanilla cards to not be loaded into the card pool, making it impossible to use with custom cards and throwing An exception when CardLoader.GetCardByName is called.