Speed of the Zephyr

Level: 2
Duration: 5 rounds
Saving Throw: None
Normal: You urge your ally on to greater speed with this utterance, enabling him to sprint across treacherous surfaces or even scale sheer walls.
Your target’s base speed increases by 20 feet as his feet glow with an amber light. In addition, he can adjust his body’s equilibrium so that he can walk on water, quicksand, snow, or even a spider’s web without sinking or breaking through (this effect does not confer any resistance to particularly sticky webs). In addition, the target can take part of one of its move actions to traverse a wall or other relatively smooth vertical surface if it begins and ends its move on a horizontal surface. The height it can achieve on the wall is limited only by this movement restriction. If it does not end its move on a horizontal surface, it falls prone, taking falling damage as appropriate for its distance above the ground. Treat the wall as a normal floor for the purpose of measuring movement. Passing from floor to wall or wall to fl oor costs no movement; the target can change surfaces freely. Opponents on the ground can make attacks of opportunity as the target moves up the wall. 
Reverse: The target of this utterance cannot move as quickly as it had just a moment before. Your target’s base speed is reduced by 10 feet, as its feet seem to stick to the ground.