elemental power
Hydrokinesis
Also called Water Manipulation, Water Control, Waterbending
Hydrokinesis is the ability to control water with the mind — moving it, shaping it, pressurising it and changing its state. In most fiction the user moves water that already exists; only a small number of characters generate it from nothing, and that distinction is the single biggest difference in power level between them.
How it works
Almost every water controller in fiction falls into one of two camps, and conflating them is why online power debates go nowhere. Ambient users move water that is already present — Katara needs a source, Aquaman needs an ocean. Generative users produce water from their own body or from chakra, which makes an arid battlefield irrelevant to them.
The second axis is state. Water is only dangerous at scale or at pressure. Characters written well use phase changes — freezing it for constructs, vaporising it for cover, or compressing it into a cutting jet. Characters written badly just throw waves.
The third, and least discussed, is what counts as water. Blood is water. Sap is water. The moisture in a human body is water. Series that acknowledge this produce the genuinely frightening version of the power — bloodbending in Avatar, or Mera's hard-water constructs — while series that do not leave it as a mid-tier elemental ability.
How it scales
- Ambient
Moves water that is already present. Useless in a desert. Katara at the start of her training, Percy Jackson without a water source.
- Generative
Produces water from nothing. Kisame creating a sea in dry terrain; Juvia, whose body is itself water.
- State-changing
Freezes, boils or pressurises at will. Katara and Gray Fullbuster both cross into cryokinesis at this tier.
- Biological
Controls the water inside living things. Bloodbending — the point where the power stops being elemental and becomes body horror.
Who has hydrokinesis
Across 4 universes. This list crosses publishers — something no single wiki can do, because every franchise keeps its own separate database.
| Character | Universe | Franchise | Feats |
|---|---|---|---|
| Namor the Sub-Mariner | Marvel | Marvel Comics | 3 |
| Storm | Marvel | Marvel Comics | 2 |
| Aquaman | DC | DC Comics | 4 |
| Mera | DC | DC Comics | 4 |
| Ocean Master | DC | DC Comics | 3 |
| Juvia Lockser | Anime & Manga | Fairy Tail | 4 |
| Kisame Hoshigaki | Anime & Manga | Naruto | 4 |
| Nami | Anime & Manga | One Piece | 2 |
| Aang | Other Media | Avatar: The Last Airbender | 1 |
| Katara | Other Media | Avatar: The Last Airbender | 3 |
| Percy Jackson | Other Media | Percy Jackson | 4 |
The feat ledger
Every entry cites the work it comes from. Feat means it was shown in the work; Statement means a character or narrator said it. Nothing here is a fan estimate unless it is tagged Calc.
Aquaman — Raised the sea against a full Atlantean invasion force during Throne of Atlantis, flooding the eastern seaboard
Mera — Formed hard-water constructs solid and sharp enough to be used as bladed weapons
Katara — Bloodbent a living person by controlling the water inside their body, under a full moon
Kisame Hoshigaki — Generated an enormous volume of water in terrain that had none, then fought submerged inside it
Juvia Lockser — Physical attacks passed harmlessly through her body, which is composed of water rather than flesh
Percy Jackson — Healed his own injuries on contact with water, and breathed underwater indefinitely
Namor the Sub-Mariner — Water manipulation is secondary to his physical power; his strength rises while submerged rather than his water control
Storm — Summons and directs rain, and can withdraw it as easily
Storm — Clears a storm system as readily as she raises one
Aquaman — Commands sea life across an ocean's range
Aquaman — Raises and directs water as a physical force on land
Aquaman — Telepathic contact with sea life is stated as command, not suggestion
Namor the Sub-Mariner — Commands sea life and Atlantean forces across an ocean
Namor the Sub-Mariner — Raises tidal force against a coastline as a weapon
Katara — Bends water from surrounding air and plant life when no source is available
Katara — Bloodbending: control of the water inside a body, which the series treats as a moral line
Mera — Hard-water constructs formed from ambient moisture
Mera — Her control is stated to be more precise than Aquaman's
Mera — Forms weapons and restraints from water in open air
Percy Jackson — Controls water as a son of Poseidon, the source of every other ability
Percy Jackson — Raises water against gravity and holds its shape
Percy Jackson — Breathes underwater indefinitely and stays dry unless he chooses otherwise
Kisame Hoshigaki — Creates an ocean out of open ground and fights inside it
Kisame Hoshigaki — Water prison techniques immobilise a target completely
Kisame Hoshigaki — Breathes underwater, which is why the ocean technique costs him nothing
Juvia Lockser — Controls water in bulk, drawn from the air when no source is present
Juvia Lockser — Water Slicer cuts rather than crushes, a pressure technique
Juvia Lockser — Constant rain followed her before she joined the guild, tied to her mood
Aang — Learns waterbending second, in the order the Avatar cycle requires
Nami — Produces rain and mist to control visibility on a battlefield
Nami — Reads weather well enough to predict it, which is the navigator's actual skill
Ocean Master — Commands Atlantean forces and manipulates water as a weapon
Ocean Master — Raises tidal force against surface cities
Ocean Master — Commands sea life, though less completely than Aquaman
Limits
- Most users need an existing source; a dry environment is a hard counter.
- Volume rarely equals control — moving an ocean is easier to write than shaping a blade of water precisely.
- Freezing usually requires a separate ability or a stated dual affinity.
- Aquaman's water control is a late addition to the character; his classic power set is strength, durability and marine telepathy.
Counters
- Heat and evaporation — sustained flame beats sustained water in most systems.
- Electricity conducted through the water the user is standing in.
- Separating the user from their source, which is why enclosed and arid arenas are the standard counter-tactic.
- Absorbent or non-conductive terrain.
Questions
Does Aquaman actually have hydrokinesis?
Yes, but it is not his original power. Aquaman debuted in 1941 with superhuman strength, durability and the ability to command sea life. Direct water manipulation was added much later and is written inconsistently across continuities — strongest in the New 52 and Rebirth eras.
Who is the strongest hydrokinetic?
By demonstrated feat, Aquaman and Mera operate at the largest scale, moving ocean-level volumes. By precision, Katara and Mera are ahead. Kisame is the clearest generative user — he creates water where none exists, which most of the others cannot do.
Is bloodbending hydrokinesis?
Technically yes. Bloodbending is waterbending applied to the water inside a living body. Avatar treats it as a separate, outlawed discipline requiring a full moon, which is why it is usually listed on its own rather than as ordinary water control.
Last updated 2026-09-06 · machine-readable version