The term 'bag of tricks' refers to a collection of strategies or resources that can be used to achieve a desired outcome. In this crossword, the solutions 'ARSENAL' and 'REPERTOIRE' are both appropriate words to describe such a collection. An ARSENAL is a large collection of weapons or other military equipment, while a REPERTOIRE is a collection of skills, abilities, or works that an individual has mastered. Both words can be used to describe a bag of tricks, as they both refer to a collection of items that can be used to achieve a goal.