The Knuckle Cut allows you to cut the deck using only one hand. One-handed cuts like this are a crucial move for all advanced magicians to master. Not only are they visually impressive, they are an essential move for many advanced card tricks.
The French Drop, demonstrated in the video with a coin, is actually a classic sleight used to make small objects disappear. A truly universal trick that'll prove to be endless helpful for any magician attempting any close-up tricks.