Aurora should focus on medium lane pressure and look to leverage her mobility and burst to pick off K'Sante before he can stack (Q) and control the lane.
This is a control vs teamfight matchup where Aurora must avoid giving K'Sante a passive lane to scale and instead force short trades that favor her burst damage.
Trading pattern
Initiate trades by casting (Q), following immediately with (E) for damage and repositioning, then reactivate (Q) to maximize burst.
Punish K'Sante after he uses (W) since his displacement and damage reduction are down.
Avoid trading when K'Sante has (Q3) stacks ready or (R) available, as his dueling and displacement threat is highest then.
Danger windows
Be cautious when K'Sante has (Q3) stacks ready, as his knockback and slow can disrupt your positioning.
Avoid extended trades or all-ins when (W) is available, since he gains damage reduction and displacement.
After K'Sante uses (R), he is less tanky but still dangerous; use this window only if you can safely capitalize without overcommitting.
Early game
Use early waves to safely farm and poke with (Q) and (E) while avoiding extended trades due to (E) being easily dodged.
Avoid committing after using (W) since it leaves no quick escape; instead, use it to reposition for picks or disengage safely.
Track (Q) stacks and avoid trading when he has full stacks ready for displacement and knockback.
Power spikes
At level 6, use (R) for high mobility and burst to execute verified all-ins or picks; avoid forcing fights when (R) is down.
After completing the first AP burst item, increase pressure on waves and trades, as your damage becomes significantly stronger.
Respect K'Sante's level 6 (R) which enables isolation and dueling power; avoid terrain angles that amplify his threat.
Win conditions
Use your mobility and burst to pick off K'Sante before he can stack (Q) and transform with (R).
Deny K'Sante a calm scaling lane by forcing short trades after his key cooldowns are down, especially post-(W) and pre-(R).
Leverage your level 6 and first item spikes to pressure waves and roam or flank in teamfights, disrupting K'Sante's frontline control.
Tip: For Aurora vs K'Sante, read overview, trading pattern, and danger windows first for a fast Top lane check.