Gael's Great Sword has two attacks:
1) Weapon Art + light attack (Left button of mouse) = The rolling attack
2) Weapon art + heavy attack (shift + left button of mouse) = The Frog Jump
The problem with the normal Frog Jump is, you move back first, then strike forward.
However, I have seen in some Youtube videos specially PvPSkillz that he uses the frog jump as a gap closer, I think he uses Xbox, so I'm thinking, How can I change the direction of the Frog Jump? A typical frog jump moves backwards first, then forward, PvPSkillz frog jump is forward, forward!