Path toward lanes that river can solve, and do not spend first crab just to prove you can fight there, because Qiyana’s early route is unusually punishing when it delays the damage timing that lets her actually play the map.
Play the element cycle instead of one combo: water to stick, W during grass stealth for the real reset, and rock to collect at the end, because burning rock first or skipping the grass reload is one of the cleanest ways to make Qiyana feel fake.
R is about the knockback line, not just the fact that a wall exists, so take the half-beat to set the terrain hit and, when behind, punish the first body crossing that line instead of waiting for a miracle carry angle.
In most real jungle fights, start with the element that makes contact reliable, not the one that looks best on the tooltip. If you are entering from river, that usually means water first so the target cannot just walk out of the play. Once contact is made, think about what keeps your turn alive: grass is often the next pickup because it buys the stealth window to W, reset your passive, and choose whether to keep chasing or disengage. Rock is usually the last piece, when the target is already low enough to cash out. The common mistake is opening rock too early and removing your best reset before the fight has actually settled.
Qiyana's first basic attack or ability against each enemy deals bonus damage.
Qiyana swings her weapon, dealing damage with a bonus effect based on her element.
Qiyana dashes to a location and enchants her weapon with an element. Her attacks and abilities deal bonus damage while her weapon is enchanted.
Qiyana dashes to an enemy, damaging them.
Qiyana sends out a shockwave that detonates whatever elements she hits with it, stunning and damaging nearby enemies.