Thalassa Deepcurrent, a Water Genasi Wizard — D&D 5e NPC portrait
#0330

Thalassa Deepcurrent

"The Glass-Oar"

Female (she/her) · Ancient (347 years, appears ageless)

Ability Scores

STR
8
-1
DEX
14
+2
CON
16
+3
INT
20
+5
WIS
18
+4
CHA
12
+1

Combat

Armor Class
15
Mage Armor (13) + DEX (+2)
Hit Points
84
Hit Dice: 13d6
Initiative
+2
Speed
30 ft., swim 30 ft.
Proficiency
+5
Passive Perception
19

Attacks

The Glass-Oar+94d10 psychic
Fire Bolt (cantrip)+103d10 fire

Personality

Personality

Hums sea shanties from centuries ahead, often mid-sentence. Speaks in nautical metaphors ('Your anger is a barnacle—scrape it off or it'll slow your hull'). Frequently pauses conversations to stare into her Basin, nodding at things only she can see. Offers cryptic advice by describing futures she won't explain: 'Don't wear red on the third Thursday' or 'The baker's son will matter more than the duke.'

Ideal

Craft — The timeline is a ship, and I am its keeper. Let others concern themselves with good and evil; I concern myself with keeping the hull sound and the sails full.

Bond

The Veil-Tide itself—the subterranean river is her home, her workshop, her constant companion. If the river were to run dry or be corrupted, she would unravel entirely.

Flaw

Cannot resist 'fixing' timelines even when the natural outcome would be better. She has accidentally caused catastrophes by over-correcting small futures, like a shipwright who over-tightens a bolt and cracks the wood.

Backstory

Thalassa was not born to ferry souls—she stumbled into the profession after drowning in a storm three centuries ago. She woke on the banks of the Veil-Tide, gasping for air that never came, and found herself unable to die. The river had claimed her, but not as a victim—as a vessel. The first soul she encountered was a weeping child-spirit who begged to know if their mother would be alright. Thalassa looked into the water and saw the answer shimmer back: the mother would grieve, then heal, then find love again in seven years. She told the child this, and the spirit crossed over with a smile. That moment of comfort, born from foresight, became her craft.

Centuries of work have turned her eccentric. She collects hourglasses from timelines that never were—some run backward, some sideways, one leaks sand upward into nothing. She hums shanties that sailors will compose two hundred years from now, their melodies carried on winds that haven't yet blown. Kings and warlords mean nothing to her; she once redirected an entire naval blockade by 'suggesting' to a cabin boy that he should look at the stars differently, which led to a navigation error, which led to a mutiny, which led to the blockade disbanding. When questioned, she simply said the river had shown her the knot needed untying. She doesn't save the world for heroism—she maintains it like a shipwright caulking leaks, because a broken timeline is shoddy work, and Thalassa takes pride in her craft.

Her raft is made from wood that washed down from seventeen different futures. Her Basin of Rippled Echoes is always half-full with water from 'tomorrow's rain,' which she stirs with her fingers to pluck golden threads of possibility. She once spent a decade ferrying the same ghost—a philosopher who kept asking 'what if' questions—until she finally showed him every branching path his life could have taken. He crossed over laughing, having realized that every choice led somewhere beautiful. That is Thalassa's true gift: she doesn't fear the chaos of fate. She shapes it, one thread at a time, humming songs the future hasn't learned yet.

Abilities & Actions

Portent (2/day, recharges on long rest)

When Thalassa finishes a long rest, she plucks two glowing threads from the Basin of Rippled Echoes and rolls 2d20, recording the results. Before any creature she can see makes an attack roll, saving throw, or ability check, she can spend one portent die to replace the roll with one of her recorded results. She describes this as 'showing them the current they were meant to ride.'

Expert Divination

When Thalassa casts a divination spell of 2nd level or higher using a spell slot, she regains one expended spell slot of a level lower than the spell cast. The Basin refills with 'future rain,' allowing her to cast again.

The Glass-Oar Strike (1/short rest)

Thalassa swings her translucent oar—carved from petrified Veil-Tide water—as a melee spell attack (+9 to hit, reach 10 ft.). On a hit, the target takes 4d10 psychic damage and sees a vision of their own death (one possible future). The target must succeed on a DC 17 Wisdom saving throw or become frightened of Thalassa until the end of their next turn, paralyzed by the weight of foreknowledge.

Amphibious Seer

Thalassa can breathe air and water. While submerged in any body of water, she can cast Scrying without material components, using the water's surface as her sensor. The water around her always shows reflections of possible futures rather than the present—stone ceilings become starry skies, empty halls fill with ghostly revelers.

Tide-Reader's Warning (3/day)

As a reaction when an ally Thalassa can see is about to be hit by an attack, she mutters a shanty verse from tomorrow. The ally gains a +5 bonus to AC against that attack as spectral water briefly shields them. If the attack still hits, Thalassa learns one secret about the attacker's future.

DM Notes

Thalassa's voice is a low, rhythmic murmur—like waves against a hull—and she rarely makes eye contact, instead gazing at the space just past people's shoulders as if reading futures written in the air. When excited, her hair flows upward more vigorously, and droplets of bioluminescent water fall from her robes, evaporating before they hit the ground. She greets strangers by asking, 'What tide brings you?' and farewells them with, 'May your currents run true.' If players try to lie to her, she smiles faintly and says, 'I've already seen how this conversation ends three times—try the truth in the fourth version.' Her signature gesture is trailing her fingers through her Basin, humming a tune that sounds hauntingly familiar but no bard can place. Thalassa will absolutely derail a quest if her divinations show that the 'proper' outcome requires ignoring the party's goal. She is maddening to work with, but her foresight has saved the world seventeen times in ways no one will ever know. Sample dialogue: 'The king's edict? A pebble tossed into a pond. I'm concerned with the ripples three shores over.' / 'You want my help? Then listen: in four days, a child will offer you bread. Take it. Don't ask why—just take it.' / (humming) '...and the cabin boy saw stars upside-down, and the fleet turned 'round, and the war was a joke the sea forgot to tell...'