Why
Kassadin is hard for Aurora because he breaks your plan in two phases: he absorbs your poke/burst better than most mids, then becomes ‘ungrabbable’ after level 5. You want to pick, finish, reset. He wants to survive early attempts, then hunt you during windows where you lack an exit.
Lane impact
In lane, if you don’t secure a clear early lead, you’re fighting a champion whose threat grows every minute. Once he has mobility, your trades get riskier: you might win a short exchange, but lose the lane if he catches you on the way out.
How to play
Positioning: avoid playing in the long lane without vision, and keep the wave in a zone where you can reset without crossing extended open space. Key timing: your best window is pre-5 and before his first major spike—take clean resets, deny waves, and roam fast when you’ve pushed. Decision-wise: if you didn’t snowball, shift goals—don’t tunnel on killing him; play sides, accelerate objectives, and save burst to punish his dives onto your carries instead of chasing him.