Dark One's Own Luck (Recharges after a Short or Long Rest). When the warlock makes an ability check or saving throw, it can add a d10 to the roll. It can do this after the roll is made but before any of the roll's effects occur.

Regeneration. Dirt-Under-Nails regains 10 hit points at the start of his turn if he is in contact with the ground. If Dirt-Under-Nails takes fire damage, this trait doesn't function at the start of his next turn. Dirt-Under-Nails dies only if he starts his turn with 0 hit points and doesn't regenerate.

Shared Senses. Dirt-Under-Nails can see and hear what any plant within 120 ft can see and hear. In addition, Dirt-Under- Nails can communicate telepathically with any plant within this range.

Special Equipment (+2 Rod of the Pact Keeper). While holding this rod, Dirt-Under-Nails gains a +2 bonus to spell attack rolls and to the saving throw DCs of his warlock spells (included in modifications, below). In addition, he can regain 1 warlock spell slot as an action while holding the rod. He can't use this property again until he finishes a long rest.

Tree Stride. Once on each of its turns, Dirt-Under-Nails can use 10 feet of his movement to step magically into one copse of mushrooms within 5 feet of him and emerge from a second copse of mushrooms within 60 feet of it, appearing in an unoccupied space within 5 feet of the second copse. Both copses of mushrooms must be Large or bigger. Dirt-Under-Nails doesn't need to be able to see the second copse to use this ability.

Innate Spellcasting. The warlock's innate spellcasting ability is Charisma. It can innately cast the following spells (spell save DC 15), requiring no material components:

At will: alter self, false life, levitate (self only), mage armor (self only), silent image

1/day each: feeblemind, finger of death, plane shift

Spellcasting. Dirt-Under-Nails is a 17th level spellcaster. His spellcasting ability is Charisma (spell save DC 17, +9 to hit with spell attacks). He regains his expended spell slots when he finishes a short or long rest. He knows the following warlock spells:

Cantrips (at will): chill touch, eldritch blast, friends, mage hand, minor illusion, prestidigitation, shocking grasp

1st–5th level (4 slots): armor of Agathys, banishment, burning hands, cloudkill, flame strike, magic circle, scorching ray, scrying, stinking cloud, suggestion

Mace. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit:3 (1d6) bludgeoning damage plus 10 (3d6) fire damage.