And I guess you can use boast effects twice if you really want to, but the available pool of boast cards is small, underpowered, and sometimes doesnt even get anything of consequence out of a second use
You can't add more than 20 damage in this way
It is an issue, however, when a lack of clarity influences how people act in the game
Here's where I'd start with building around Naban, Dean of Iteration in Standard
Though your child and their friends may have no issue at all with having fake cards, which are more prevalent than you may imagine, they will often be unusable in games, even if they play casually with friends, due to typos, errors and poor print quality
Obscuring Haze While certainly not as powerful as its siblings Fierce Guardianship and Deflecting Swat, Obscuring Haze is still very strong