box of tricks
1. The items that one has available for use. The phrase originally referred to the items a magician would use for magic tricks. Let's see what I have in my box of tricks to entertain the baby.
2. The skills that one has available for use. She's an ace negotiator, so you know she has a few more surprises in her box of tricks.
a box of tricks
an ingenious gadget. informala bag/box of ˈtricks
(informal) a set of methods or equipment that somebody can use: Hotel managers are using a whole new bag of tricks to attract their guests.