Mark of the Wild

4th-level Transmutation
Casting Time: 1 bonus action or 1 action if cast on a creature other than yourself
Range: Touch
Components: V
Duration: (C) 1 minute

A nature spirit answers your call and transforms you or a creature you touch into a powerful guardian. The transformation lasts until the spell ends. You choose one of the following forms to assume: Primal Beast or Great Tree.
At Higher Levels. When you cast this spell using an action and a spell slot of 5th level or higher, you can target one additional target for each slot level above 4th. The creatures must be within 30 feet of each other when you target them.

Source: XGE 157 as Guardian of Nature