The Violent Ankle pick 

Awesome Takedown.

Slap! bow to your sensei! Napoleon Dynamiter style lol

What’s is that tactics called

I really disagree with the point of "whenever you're attacking a leg you want that one to be heavy," he even refuted this in his own point of shoving them hard. You shove them hard to to shift their weight to the back foot. Wrestlers and judokas know this, when you shoot a good single leg in wrestling, you drive with chest/shoulder pressure to push them backwards, making the leg closest to you light. Trips in judo operate under the same principle, you attack an uchi mata by hipping in, pushing them towards the rear leg so you can elevate the lead leg. I agree that having them come forward can be a good setup to expose the ankle for picking, but saying the leg should be heavy when you go to pick it up isn't true. You're not stronger than that leg, you gotta get it light to beat its strength.

Great lesson on how to catch a knee in the face no thanks