Favorites

Commands to add/remove/reset fav list.

Commands Usage

Command	Description
k!fav	Show the list of favorite cards.
k!fav add [code]	Add individual card code to favorites.
k!fav add group	Add all cards from the specified group to favorites.
k!fav add era	Add all cards from the specified era to favorites.
k!fav add idol	Add all cards from the specified idol to favorites.
k!fav add issue	Add all cards from the specified issue to favorites.
k!fav remove [code]	Remove individual cards from favorites.
k!fav remove group/idol/era/issue	Remove all cards from the specified args from favorites.
k!fav reset	Reset the list of favorites.