/u/MandyMod's Walter statblock YAML (for obsidian fantasy-statblocks plugin)

name: Flesh Mound (Walter)
size: Large
type: Undead
alignment: Unaligned
ac: 15
hp: 136
hit_dice: 16d10+48
speed: 20 ft., swim 20 ft.
stats: [18, 8, 16, 5, 10, 5]
damage_immunities: Blinded, Deafened, Exhaustion
senses: Blindsight 60ft. (Blind beyond this radius), passive Perception 10
languages: None
cr: 5
traits:
   - name: Innocent Heart
     desc: Walter's infant corpse lies at the heart of the Flesh Mound, crying and afraid. If engulfed, have the player roll a d4. On a 2 or 4, they see Walter within the flesh and gore. Walter's heart has an AC of 10 and 5 HP. If this heart's HP is reduced to 0 or otherwise cleansed, the Flesh Mound dissolves forever and Walter's Spirit is at peace.
actions:
   - name: Slam.
     desc: "\nMelee Weapon Attack: +7, Reach 5ft., one target.\nHit: 13 (2d8+4) bludgeoning damage.\nWhen the flesh mound makes a slam attack and succeeds on hit, it has the option of grappling the target in exchange for doing damage. The target must succeed on a DC 14 Athletics/Acrobatics check on its turn in order to escape the grapple."
   - name: Engulf.
     desc: "\nMelee Weapon Attack: +0.\nHit: 2 (1d4) bludgeoning damage.\nThe flesh mound engulfs a Medium or smaller creature grappled by it. The engulfed target is restrained and unable to breathe, and it must succeed on a DC 14 Constitution saving throw at the start of each of the target's turns or take 1d4 bludgeoning damage. If the mound moves, the engulfed target moves with it. The mound can only have one creature engulfed at a time."