Wind Spikes

Wind spikes: The user covers an area with invisible spikes of air that pierce through a targets skin dealing piercing damage and counting the area as difficult terrain. Targets take +5 points of piercing damage for every 10ft of movement in the area. Rank: E. Style: Ninjutsu. Chakra cost: 10 per 50ft cube. Range: 50ft cube. Save: None. Damage: +5 piercing damage for every 10ft moved. Focus: No. Requirements: Wind style. Enhancement: Doubled range. Minor Action