Oath of Sylvia

 Will edit and add more later.

Thorny Defense

When you take this oath at the 3rd level, you gain the ability to use your Channel Divinity as a reaction when a melee attack is rolled but before the DM announces a hit to grow a wall of thorns between you and your attacker.

This wall increases your AC by 2 until the end of the round. If this would cause the attack to miss, the attacking creatures takes 1d8 piercing damage and makes DC 15 Dexterity roll. If the creature fails the saving throw, it become grappled by the plant, taking 1d8 piercing damage on each Dexterity roll made to escape the grapple.

This damage increase to 2d8 at level 9 and 3d8 at level 17.

Aura of the Veil

Starting at 7th level, a misty veil envelopes the natural area around you. You and friendly creatures within 10 feet of you are veiled in a mist that imposes disadvantage on attack rolls made against them and provides advantage for melee attacks they make against creatures with which they are not already engaged. You must be conscious to grant this bonus.

At 18th level, the range of this aura increases to 30 feet.

 

Hardened by Nature

Starting at the 15th level, your skin has been weathered by wind and soil, toughening it like rhino hide. Your AC increases by 2 and have resistance to acid, fire, and cold damage.

Call for Reinforcements

Starting at 20th level, your time spent communing in nature has flourished into a friendship with the forest creatures who will come to your aide when called. As a full round action, you can call on one of the creatures detailed in the list below. You cannot use this skill again until all reinforcements from the previous use have been killed or dismissed by using a bonus action to do so, and you cannot choose the same creature previously called until after completing a long rest.

Squirrel

Hawk

Porcupine

Warthog

Brown Bear

Oath Spells

Spells learned at:

Level 3 - Animal Friendship, Spike Growth

Level 5 - Create or Destroy Water, Speak with Animals

Level 9 - Animal Messenger, Speak with Plants

Level 13 - Locate Animals or Plants, Plant Growth

Level 17 - Commune with Nature, Tree Stride