Wood Release Secret Technique: Nativity of a World of Trees

=Wood Release: Nativity of a World of Trees=
==== Ninjutsu (Wood) ====
Level: 	C (4)
Hand Seals: 	Tiger → Snake or Ram → Snake
Casting Time:	Full Round Action
Range: 	Close (25 ft + 1ft/2 caster levels)
Area: 	100 ft spread
Duration: 	Concentration
Saving Throw 	Reflex
A technique where the user forces trees to grow on any surface, easily creating a dense forest anywhere they choose. A small plant can grow into a forest in an instant.[3] By generating chakra, the user manoeuvres it as they see fit for attack and defence; and furthermore, this omnipotent technique even allows them to capture the enemy at the same time. With their tremendous life force, the trees can pierce through earthen walls, and extend their branches at their prey in an instant.
 This jutsu creates a 100 foot spread where trees and other vegetation can be used to trap and ensnare opponents. Any enemies who fail their reflex saves are considered to be travelling through difficult terrain (2x speed costs) and also each round they are grappled by a number of root equal to the highest level of jutsu that the caster can use. These trees have a grapple bonus equal to the caster level of the user, plus the caster's Constitution modifier. Manipulating the trees is considered a full round action where the user must maintain their concentration. If they fail a concentration check they must recast the jutsu in order to manipulate the created trees once more.