Circle of the final rest

Following the druidic teachings of the cemetary dwelling Mushroomfolk brings with it an understanding of death and its relation to life, how one brings about the other in a perpetual cycle. Druids of this circle are experts in using nature's restoration through death and decay. A rotting corpse is full of more life than the whole of a surrounding forest and the Final Rest knows how to divert those energies into useful spells.

Death's communion

At 2nd level you gain the ability to cast Speak with dead without expanding a spell slot.

This ability can be used once, then requires a long rest before it can be used again.

Fungal Reclamation

Starting at 2nd level, as a bonus action, you can inoculate a corpse with the spores of the circle. At the beginning of your next turn, mushrooms erupt from the corpse and spread spores in a spherical area 20 feet in radius.

Allies within the area gain temporary hit points equal to 3 + your druid level.

Enemies within the area must succed on a constitution saving throw or be poisoned for 1d4 turns.

This ability destroys the inoculated corpse which cannot be used again.

 At 5th level and every 3 druid level after that the temporary hp gain is increased by 2.

Life Intertwined

At 6th level, When you or an ally take damage, as a reaction you can transform half of the damage taken into healing for a different target creature. Both creatures must be within 20 feet of you.

This ability can be used a number of times per long rest equal to half your druid level rounded up.

Death Untangled

Beginning at 10th level, allies within 30 feet of you have advantage on death saving throws.

Once per day if an ally would die within 30 feet of you, they instead stabilize at 0 hp. They do not regain consciousness.

The grand cycle

Starting at 14th level, You can use an action to drain health from a target creature within 30 feet. That creature makes a constitution saving throw, taking 5d8 points of necrotic damage on a failure and half as much on a success. You can then choose another creature you can see within 30 feet, that creature gains temporary hit points equal to the damage dealt.

If a creature's hp is reduced to 0 by this ability, it's corpse is automatically inoculated with the spores of Fungal Reclamation.

You can use this ability a number of times equal to 1 + your spell casting ability modifier before requiring a long rest.

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