The Source
Gargantuan elemental, neutral
Every river has a first drop — the bead of water that decided to go downhill and never stopped. Up in the hillrock that bead is still falling, and it remembers being all of this. The Source is the headwaters with their eyes open: a walking spring the size of a millhouse that pours itself uphill to look you over. What it keeps, stays sweet. What it spills, it forgets on purpose.
Armor Class 18 (living water)
Hit Points 214 (11d20 + 99)
Speed 30 ft., swim 60 ft.
- STR
- 22 (+6)
- DEX
- 18 (+4)
- CON
- 28 (+9)
- INT
- 16 (+3)
- WIS
- 20 (+5)
- CHA
- 18 (+4)
Saving Throws Con +14, Str +11, Wis +10
Skills Perception +10
Damage Resistances acid, bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities poison
Condition Immunities exhaustion, grappled, paralyzed, petrified, poisoned, prone, restrained
Senses darkvision 120 ft., passive Perception 20
Languages Primordial
Challenge 15
Traits
Legendary Resistance (3/Day). If the source fails a saving throw, it can choose to succeed instead.
Water Form. The source can move through a space as narrow as 1 foot wide without squeezing, and can occupy another creature's space.
Redistribute (Recharge 5–6). The source draws in its lesser waters. Each allied water creature of its choice within 60 feet takes 14 (4d6) Necrotic damage, and the source regains hit points equal to the total damage dealt this way. Creatures destroyed by this damage collapse into ordinary water.
Actions
Multiattack. The source makes three Tidal Slam attacks.
Tidal Slam. Melee Attack Roll: +11, reach 20 ft. Hit: 25 (3d12 + 6) Bludgeoning damage.
Engulf. The source flows over creatures in its space. Each Large or smaller creature in its space must succeed on a DC 19 Strength saving throw or be engulfed. An engulfed creature is blinded and restrained, has total cover against attacks from outside, and takes 17 (5d6) Bludgeoning damage at the start of each of the source's turns. It can escape by succeeding on a DC 19 Strength check, emerging prone in a space of its choice within 10 feet.
Legendary Actions
Headwater Surge. The source makes one Tidal Slam attack.
