You know exactly how to handle a stick-in-the-mud. The target must attempt a Fortitude save as you transform it into a tree. There must be enough room to turn the target into a Large tree, or the spell fails.

---

Critical Success The target is unaffected.

Success The target is Slowed 1 and Immobilized until the end of its next turn.

Failure The target's body stiffens, becoming a Large adult tree (as one with plants) for 1 minute. The target can attempt another save at the end of each of its turns.

Critical Failure As failure, except the target is a tree for 1 hour and can't attempt additional saves.