Druids of the Circle of The Revenant Moon find beauty in both life,and death. These druids believe that life and death are portions of a grand cycle,with one leading to the other and then back again. Death is not the end of life, but instead a change of state that sees life shift into a new form. They not only harness the powers of the moon and nature,but also power over the dead,being able to make them do their bidding,or perhaps bring someone back to life. 

Some druids of this circle focus on healing,acting as a shaman or apothecary,and often get confused for nature clerics. Some choose to use the darker side of their power, though the reasons are as varied as the people who use it. Some may want to bring the world to ruin with a zombie plague,while others may just want the dead to help those still alive,while others may just reanimate a corpse to move it to a better location to bury. The reasons are as diverse as nature itself. 

(some necromancy and healing had to be left out because they are licensed content,but i gave as many healing and necromancy spells l could out of the free stuff.)

Grave Magic

When you choose this circle at 2nd level, you learn the Spare the dying cantrip,and it doesn't count against your cantrips known. You also unlock the ability to learn many new spells,allowing you to restore life,control the dead,and alter the living.

Combat Wild Shape

When you choose this circle at 2nd level, you gain the ability to use Wild Shape on your turn as a bonus action, rather than as an action.

Additionally, while you are transformed by Wild Shape, you can use a bonus action to expend one spell slot to regain 1d8 hit points per level of the spell slot expended.

Revenets Blessing

The rites of your circle grant you the ability to transform into more dangerous animal forms. Starting at 3nd level, you can use your Wild Shape to transform into a beast with a challenge rating as high as 1. You ignore the Max. CR column of the Beast Shapes table, but must abide by the other limitations there.

Starting at 6th level, you can transform into a beast with a challenge rating as high as your druid level divided by 3, rounded down.

Starting at 14th level,you can transform into a beast with a challenge rating as high as your druid level divided by 2,but no higher then CR 8.

Additionally,you gain 60 feet of dark vision both in and out of wild shape. lf you or the beast you are wild shaped into has better vision,use that instead.

Necrotic Strike

Starting at 6th level, your attacks in beast form deal a extra 1D6 Necrotic damage,and count as magical for the purpose of overcoming resistance and immunity to nonmagical attacks and damage.

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Reanimated Wild Shape

When you reach 10th level, you can’t be charmed or frightened by elementals,fey or undead, and you are immune to poison and disease.

You can also expend two uses of Wild Shape at the same time to transform into a undead version of any beast of your choice,such as a Warhorse Skeleton,or Skeletal Polar Bear. Doing so grants you a immunity to necrotic damage and resistance to cold damage,but a weakness to radiant and fire damage,and also makes your attacks deal a extra 2D8 Necrotic. It follows all other rules and ability's for its species,except for those altered by this subclass.

Should a undead version of a beast not exist,the DM has final say on if you can transform into one or not,as well as any ability's or weaknesses other then those above.

Undead Form

By 14th level, you have learned to use magic to alter your physical form in more subtle ways. You can cast the Alter Self spell at will,and no longer need to eat,drink,sleep.or breath,though you can still do so if you chose.

Additionally, your Darkvision extends to 120 feet,both in and out of Wild Shape.