I always found it hard to understand how people enjoy doing magic for kids... They don't follow logic patterns, the angles are weird, they jump to (sometimes correct) conclusions without any evidence. I really just never got it...
So far he has put out five. They are kinda like magic themed skit videos, very funny. https://www.youtube.com/playlist?list=PLNZrOW6NuocrhzNbTaYrCVolGIhqbqPdB
The cards in the lower right I don't use for magic because as cards they suck. But they are just so great I had to put them in. https://www.instagram.com/p/BHqRB2hhPZx
Sometimes I will do a phase of Ambitious Card in their hands, usually I just put it on the table so I can get the effect of showing it, putting it on the table, then flipping it over all very quickly, less of a slow burn, but also very effective.
Best is too broad of a term, personally I use it for several tricks, it is just a utility, you need to find out how to use it in the context of a trick.
The only issue I see with that is it really shouldn't be needed, we are there to suspend their disbelief (as Mr. O'Brien so eloquently put), to me it seems like an artist doesn't have to tell people that every painting they paint is not based on anything and purely from their mind.