HoMM VII Haven Units – Haven faction units from the seventh installment of Heroes of Might and Magic.

You can always create it from pieces of existing animations.
The jumping demon's animation consists of three parts: start, flight, and landing. The flight is a 1-frame animation where the demon has its legs bent. Both the flight, start, and landing can easily be made from regular movement animations, as it already jumps.

Footman, am I right in understanding that you deliberately don't release all these models from the 6th game for public use, but instead post screenshots and videos here just to boast about your "skills"? Or am I mistaken?