Board game design basics: defining your goals, restrictions, the iterative design process, qualities of good games, taking feedback, and more (video):

https://www.youtube.com/watch?v=AAiCR1XVe68

Keeping players’ attention: how to design for pacing, meaningful choices, tension, and rewards (video):

https://www.youtube.com/watch?v=k_0QN4Wmehk

Game flow: how to ensure players feel engrossed while playing, what contributes to a good game flow, and what you can do as a designer to improve it (video):

https://www.youtube.com/watch?v=JqspauIq0ls

Cards vs. dice: how probability, luck, and skill work differently when using dice or a deck of cards as randomizers, and the hidden game design dial in every card game (video):

https://www.youtube.com/watch?v=GIgkG-ucEqY