Groundswell

Transmutation [earth]
Level: Artificer * 2, Cleric */Oracle * 2, Druid * 2, Hunter * 2, Magus * 2, Ranger * 2
Components: V, S
Casting Time: 1 Standard Action
Range: touch
Target: creature touched
Duration: 1 minute/level
Saving Throw: Fortitude negates (harmless)
Spell Resistance: yes (harmless)
  This spell allows the target to cause the ground to rise up beneath him. As a Swift Action, the target can cause the ground to rise 5 feet, while all adjacent squares are treated as steep slopes (Core Rulebook 428). The groundswell precludes Flanking from creatures standing at lower elevations than the target. If the target moves after creating a groundswell, the ground returns to its normal elevation at the end of his turn; otherwise, it remains in place until the target moves or uses a Swift Action to return the ground to normal. A groundswell cannot increase elevation of the ground beyond 5 feet.