Betsy the Bat is a promotional Character card for Witchful Thinking.
Betsy's first Character Ability, Echolocation, represents Betsy's unique senses to find the best ingredients. This Character Ability allows Betsy to double the value of an Ingredient card that she places into the cauldron. So, if an ingredient has a value of +4, Betsy can keep the value as is, or can change it to +8.
Betsy's second Character Ability, "It's in My Hair!", represents how people may react to bats if they are scared of them... and if the bat flies around them and maybe land on their hair. This Character Ability allows Betsy to interrupt another witch's turn by making the witch take back an Ingredient card that he or she just placed into the cauldron and exchanging it for a different Ingredient card.