Fakie Bigspins.
I tweaked my foot pretty bad though, aiming for bolts, but my back foot was slightly off and I landed with it on the tip of the tail, and it slipped off with all the pressure and rolled it. Third time I've had that accident in within 4 months, in the same spot. Anterior ligament on the top of the foot. Other than that, though, the trick feels fun and easy as hell. I had a dream I did one the night before and I just tried it the next day and got them.
Ironically enough, later my brother tore his MCL doing almost the same thing but with a huge BS Heelflip over a hip. Instead of rolling the ankle/foot, he hyperextended the knee.