Lunar Protection

Beginning when you join this circle at 3rd level, when a creature other than you is reduced to 0 hit points within 15 feet of you, you can expend one of your call of the wild uses as a reaction to have the creature drop to 1 hit point instead. A creature must finish a short or long rest before it can benefit from this feature again. If the attack was made with a silvered weapon, this feature does not work.

Moon Form

Also at 3rd level, you add the following wild traits to the wild traits available to your great beast spirits:

• Moon Hide (counts as 2 wild traits). The creature loses the ability to concentrate on spells. The creature also gains resistance to bludgeoning, piercing, and slashing damage. Silvered weapons ignore this resistance.

Lycanthropy

Beginning at 10th level, you add the following wild traits to the wild traits available to your great beast spirits:

• Hybrid Form. While the creature has the traits and visage of a great beast spirit, its form is humanoid, allowing the form to use objects and weapons that require hands. When the creature takes the attack action, it can replace any attack it makes with the attack action with an attack with a weapon.

• Lunar Rage. The creature loses the ability to concentrate on spells. Also, when the creature takes the attack action, it can choose to attack with lunar rage. When the creature attacks with lunar rage, it has advantage on melee attack rolls until the beginning of its next turn. When it uses this ability, attacks against it have advantage until the beginning of its next turn as well. 

Moonlight Magic

Also beginning at 10th level, you can cast your 1st and 2nd level moon spells without expending a spell slot once each between short or long rests.

Moon Curse

At 18th level, you learn the dominate person spell as a druid spell and can cast it without expending a spell slot. When you cast this spell with this feature, the target also wild shapes using one of your wild shape options if it fails the saving throw. The target uses one of the great beast templates available to you (your choice when you cast the spell) but does not gain any temporary hit points. Instead, the target remains transformed for the duration of the spell. The target also gains the moon hide and hybrid form wild traits for the duration. A remove curse spell can end this spell early. Once the spell ends on a creature or on a successful save, that creature is immune to this effect for 24 hours.