Instant Tree

Just add ground.
Skill required: Nature
Benefit: You may place this tiny bonsai tree in an adjacent unoccupied square, after which the tree instantly grows into a mighty oak, which is an obstacle that occupies a 5 ft square and creates a 30 ft radius spread originating from itself, which lasts for the remainder of the [Scene]. While in the spread, allies benefit from [Fast healing] equal to your level. The tree begins to wither and die at the end of the [Scene] if the environment is not suitable for its survival.