Did you like D&D 3e’s Fist of the Forest? This is like that, but in 5th edition. The class itself didn’t have a lot, so this adds some versatility to monks’ unarmed strikes, utility features with animalistic senses, and calling wild creatures to help you.
New Monastic Tradition: Way of the Wilds
One of the more extreme monastic traditions, the Way of the Wilds calls its members to embrace the asceticism of living outdoors like an animal. Adherents typically forgo permanent shelters, making tents or nests out of branches and animal skins, and the most dedicated refuse even to cook their food, eating everything raw. These warriors, known as “Fists of the Forest,” protect everything within their territories and seek to live in complete harmony with nature.
Unarmored Defense: Beginning at 3rd level when you choose this tradition, while you are wearing no armor and not wielding a shield, your AC equals either 10 + your Dexterity modifier + your Wisdom modifier or 10 + your Dexterity modifier + your Constitution modifier, whichever is higher.
Feral Trance: Starting when you choose this tradition at 3rd level, you can enter an animalistic fury for 1 minute by spending 1 ki point. While in this trance, your body changes minorly—your teeth sharpen, your nails lengthen, and your senses seem sharper. You can deal slashing or piercing damage with your unarmed strikes, and you gain a bonus on the damage rolls of unarmed strikes equal to your proficiency bonus. You also gain proficiency with Perception checks or, if you already have proficiency, can add twice your proficiency bonus to Perception checks. You cannot cast or concentrate on spells or use other class features on your turn while in this trance, but you can choose to end it as a bonus action.
Keen Scent: At 6th level, you have advantage on Perception checks that rely on smell and can use your sense of smell to track and locate creatures that are hidden from your other senses.
Uncanny Dodge: At 11th level, when an attacker that you can see hits you with an attack, you can use your reaction to halve the attack’s damage against you.
Summon Nature’s Allies: At 17th level, you can call on nature’s allies to aid you. You can spend 3 ki points to cast conjure animals or 4 ki points to cast conjure woodland beings. Once you use this feature, you can’t use it again until you finish a short or long rest.