Ostara vs Mestara - Witchdom Solo Play

About Witchdom, from BoardGameGeek:

In Witchdom, you will lead your own clan of witches into which you will recruit talented sorceresses. Their task will be to acquire magical resources, items, potion recipes and new initiates. Each apprentice must pass a final exam and brew one of the mysterious potions. Only in this way can she become a rightful member of your clan. The game of Witchdom is a card-driven game in which you'll need in particular good timing and tactical thinking to win. -description from the publisher