This spell cast be cast upon an enemy unit that is within 12" of a river, stream, bog, or any other water feature on the tabletop which has been identified as such before the game. If there are no such features on the table, it can be cast on it enemy unit within 12" of the caster. It cannot be used against a unit that engaged in close combat. If successfully cast, the ground beneath the unit is turned to swamp and the unit moves at half speed until the end if its own following turn. If fleeing, for whatever reason, the unit flees at half speed (normally 2D6 halved). This spell has no effect on flyers or ethereal creatures.