Spike growth

Caster Level: Druid 3

Innate Level: 3

School: Transmutation

Component(s): V, S

Range: Long

Save: Reflex partial

Spell Resistance: Yes

Area of Effect/Target: Large

Duration: 1 Hour / Level

Description: Covers the terrain with small spikes. Any creature will suffer 1d4 points of damage each round that they remain within the afflicted area. These spikes can damage the victim's legs, so that even once they are free of the spike growth, their movement rate is slowed for a day.