By testing out those cards, your child will learn new strategies and develop their ability to assess the strength of different card combinations
For example, Complains Clerk has "Whenever you roll a 1, create a 1/1 white Clown Robot artifact creature token." If you choose that ability, you ignore everything up to the first comma, ending up with "Create a 1/1 white Clown Robot artifact creature token." Some triggered abilities have an "intervening if" clausethat is, they are written in the form of "When/Whenever/At [trigger event], if [condition], [effect]." If you choose such an ability with Trigger Happy, you ignore the trigger event, and the ability will go on the stack even if the intervening if condition is not fulfilled, but the ability will still check the intervening if condition as the ability tries to resolve
It also features Imposter Oaks Revenge, a Trainer card starring a horrifying doppelganger of Professor Oak
All other trademarks referenced herein are the properties of their respective owners.
The sales look organic in the sense that the vast majority of buyers were only picking up one copy apiece