Water is the Kethic element of the liquid world: the river's pull, the dead weight of the deep, the rain and the standing pool. A shaper channels emotion through Pelus, the water layer of the Elemental Planes, and water answers, drawn uphill against its nature, banked into a wall against a flood, wrung out of sodden ground or pressed from the air as fog. The feeling that feeds it is the kind that flows and yields and finds the low places: grief, longing, devotion, the adaptive calm that takes the shape of whatever holds it. Intensity sets how much water moves; how well the feeling keeps to that yielding register sets how cleanly it moves. A grief given honestly runs deep and steady. A feeling forced against the grain floods past the bank the shaper meant to raise, or pools and turns stagnant before the working is done, which is how longing overreaches and how grief, given too much rein, drowns the very thing it meant to lift. Summoning and aiming that feeling on command is the same discipline all Kethic asks, and the cost is paid in feeling rather than flesh; a hard working leaves the shaper wrung dry of whatever they spent, and it returns only as the feeling itself returns. Some take it toward cold, locking a ford to ice or sheathing a hull in it, though ice fights the hand harder than open water ever does. That cold register is also where Water has come nearest to catastrophe: in the Frost Fall, Pelus drifted close against the material world and held there for a century and a half, and the cold bled through until the plane withdrew. The leylines it pressed against never fully settled, so cold-Kethic worked over the southern ground from that period still runs deeper and colder than the feeling fed it, and the cold places of the south hold their element pooled densely beneath them.
Water and air are both fluids, and a shaper of one often half-grasps the other, but the elements part on weight. Air is thin and carries sound. A water-shaper works a heavy medium that keeps its shape and holds a push long after the hand that gave it has stopped. An air-shaper raises a gust that is spent in a breath. A water-shaper turns a current that goes on turning. The split shows most on open water, where the two trades work the same storm from opposite ends, one at the sails and the other at the hull.
Water leans toward life in a way the drier elements never do, because living things are mostly water and a skilled shaper can feel the water in them. The register suits the work. The grief and devotion that move water cleanest are the same feelings a healer carries to a sickbed, and the water in a failing body answers that tenderness more readily than it answers force. The same hand that turns a current can draw the swelling out of a wound, move the fever-heat out of the blood, or coax a parched field's roots to drink. The darker uses are obvious enough that coastal law in several ports treats water-shaping in a drowning or a poisoning as a category of its own. The trade runs deepest among the river-delta and coastal peoples, where the water is always close, the tide sets the rhythm of the day, and it is the first thing anyone learns to respect.