Spike Growth
Class(es)
Casting Time
Range
Area
20
Area Shape
Components:
seven sharp thorns, or small, sharpened twigs
Duration:
Concentration (
10 minutes
)
You cause sharp spikes and thorns to sprout in the area, making it difficult terrain . When a creature enters or moves within the area, it takes 2d4 piercing damage for every 5 feet it travels.
Your magic causes the ground to look natural. A creature that can’t see the area when the spell is cast can spot the hazardous terrain just before entering it by making a Perception check against your spell save DC.
Rare Versions
Sidoneth’s Sneaky Spike Growth. The spikes and thorns created by this spell are invisible and a creature cannot perceive them until it has been damaged by this spell.
Source